Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
155101	Solve by Addition/Elimination	3x-5y=13x-2y=5	$3 x - 5 y = 13 x - 2 y = 5$
155102	Solve by Addition/Elimination	3x-9y=4 , 5x-5y=4	$3 x - 9 y = 4$ , $5 x - 5 y = 4$
155103	Solve by Addition/Elimination	3x-9y=6 2x-6y=4	$3 x - 9 y = 6$ $2 x - 6 y = 4$
155104	Solve by Addition/Elimination	3x-8y=9 -3x+10y=-15	$3 x - 8 y = 9$ $- 3 x + 10 y = - 15$
155105	Solve by Addition/Elimination	3x-9y=-159x-y=7	$3 x - 9 y = - 159 x - y = 7$
155106	Solve by Addition/Elimination	3x-8y=3 -3x+13y=-18	$3 x - 8 y = 3$ $- 3 x + 13 y = - 18$
155107	Solve by Addition/Elimination	4(x+2)-7(x-y)=77(x+y)+10(x-2)=79	$4 (x + 2) - 7 (x - y) = 77 (x + y) + 10 (x - 2) = 79$
155108	Solve by Addition/Elimination	4a+4b-c=-68a+6b+c=-56a-4b-6c=-22	$4 a + 4 b - c = - 68 a + 6 b + c = - 56 a - 4 b - 6 c = - 22$
155109	Solve by Addition/Elimination	3x-y=-1y=-3x	$3 x - y = - 1 y = - 3 x$
155110	Solve by Addition/Elimination	-3y+5x=26 , -2y-5x=-16	$- 3 y + 5 x = 26$ , $- 2 y - 5 x = - 16$
155111	Solve by Addition/Elimination	2x-y=6x+3y=30	$2 x - y = 6 x + 3 y = 30$
155112	Solve by Addition/Elimination	-2x-9y=-25 , -4x-9y=-23	$- 2 x - 9 y = - 25$ , $- 4 x - 9 y = - 23$
155113	Solve by Addition/Elimination	2y+8x-12=4x+y=-6	$2 y + 8 x - 12 = 4 x + y = - 6$
155114	Solve by Addition/Elimination	-2y+z=-83x+y+4z=-2y+2z=-1	$- 2 y + z = - 83 x + y + 4 z = - 2 y + 2 z = - 1$
155115	Solve by Addition/Elimination	2x-y=2-5x+4y=-2	$2 x - y = 2 - 5 x + 4 y = - 2$
155116	Solve by Addition/Elimination	2y=x+6x-2y=-6	$2 y = x + 6 x - 2 y = - 6$
155117	Solve by Addition/Elimination	2x-y=73x+y=8	$2 x - y = 73 x + y = 8$
155118	Solve by Addition/Elimination	2x-y=79x-4y=22	$2 x - y = 79 x - 4 y = 22$
155119	Solve by Addition/Elimination	3b+2a=2 -2b+a=8	$3 b + 2 a = 2$ $- 2 b + a = 8$
155120	Solve by Addition/Elimination	3x^2-y^2=11 , x^2+4y^2=8	$3 x^{2} - y^{2} = 11$ , $x^{2} + 4 y^{2} = 8$
155121	Solve by Addition/Elimination	3x+10y=22-3x-8y=-14	$3 x + 10 y = 22 - 3 x - 8 y = - 14$
155122	Solve by Addition/Elimination	3x+10y=7-8x-4y=17	$3 x + 10 y = 7 - 8 x - 4 y = 17$
155123	Solve by Addition/Elimination	3x+2y=10 , 2x+5y=3	$3 x + 2 y = 10$ , $2 x + 5 y = 3$
155124	Solve by Addition/Elimination	3x+2y=-102x-5y=3	$3 x + 2 y = - 102 x - 5 y = 3$
155125	Solve by Addition/Elimination	2x-3y=84x+2y=-8	$2 x - 3 y = 84 x + 2 y = - 8$
155126	Solve by Addition/Elimination	2x-4y=52x-4y=6	$2 x - 4 y = 52 x - 4 y = 6$
155127	Solve by Addition/Elimination	2x-4y=22x-4y=3	$2 x - 4 y = 22 x - 4 y = 3$
155128	Solve by Addition/Elimination	2x-7y=23x+y=-20	$2 x - 7 y = 23 x + y = - 20$
155129	Solve by Addition/Elimination	2x-y=4x+2y=20	$2 x - y = 4 x + 2 y = 20$
155130	Solve by Addition/Elimination	2x-6y=4 3x-9y=6	$2 x - 6 y = 4$ $3 x - 9 y = 6$
155131	Solve by Addition/Elimination	2x-5y=-62x-7y=-14	$2 x - 5 y = - 62 x - 7 y = - 14$
155132	Solve by Addition/Elimination	2x-8y=10 3x-12y=15	$2 x - 8 y = 10$ $3 x - 12 y = 15$
155133	Solve by Addition/Elimination	-2x-2y+2z=-2y+3z=-113x+2y-z=-6	$- 2 x - 2 y + 2 z = - 2 y + 3 z = - 113 x + 2 y - z = - 6$
155134	Solve by Addition/Elimination	2x-2y=14x+4y=-13	$2 x - 2 y = 14 x + 4 y = - 13$
155135	Solve by Addition/Elimination	2x-2y=25x+2y=12	$2 x - 2 y = 25 x + 2 y = 12$
155136	Solve by Addition/Elimination	2x-3y=124x+3y=24	$2 x - 3 y = 124 x + 3 y = 24$
155137	Solve by Addition/Elimination	2x-3y=142x+y=-10	$2 x - 3 y = 142 x + y = - 10$
155138	Solve by Addition/Elimination	2x-3y=-143x+3y=9	$2 x - 3 y = - 143 x + 3 y = 9$
155139	Solve by Addition/Elimination	2x-3y=6 , 5x+6y=6	$2 x - 3 y = 6$ , $5 x + 6 y = 6$
155140	Solve by Addition/Elimination	2x-3y=65x+6y=6	$2 x - 3 y = 65 x + 6 y = 6$
155141	Solve by Addition/Elimination	2x-3y=2 5x+4y=28	$2 x - 3 y = 2$ $5 x + 4 y = 28$
155142	Solve by Addition/Elimination	2x-3y=5 5x+6y=8	$2 x - 3 y = 5$ $5 x + 6 y = 8$
155143	Solve by Addition/Elimination	2x+3y=73x+2y=8	$2 x + 3 y = 73 x + 2 y = 8$
155144	Solve by Addition/Elimination	2x+3z=15+4y , 4x+5y=-5z+10 , -3x-y-4z=-12	$2 x + 3 z = 15 + 4 y$ , $4 x + 5 y = - 5 z + 10$ , $- 3 x - y - 4 z = - 12$
155145	Solve by Addition/Elimination	2x+4y=16x+12y=3	$2 x + 4 y = 16 x + 12 y = 3$
155146	Solve by Addition/Elimination	2x+4y=227x+y=12	$2 x + 4 y = 227 x + y = 12$
155147	Solve by Addition/Elimination	2x+4y=15 2x+4y=13	$2 x + 4 y = 15$ $2 x + 4 y = 13$
155148	Solve by Addition/Elimination	2x+2y+3z=56x+3y+6z=63x+4y+4z=9	$2 x + 2 y + 3 z = 56 x + 3 y + 6 z = 63 x + 4 y + 4 z = 9$
155149	Solve by Addition/Elimination	2x+2y-z=7-2x-y+2z=-6-4x-2y+3z=-9	$2 x + 2 y - z = 7 - 2 x - y + 2 z = - 6 - 4 x - 2 y + 3 z = - 9$
155150	Solve by Addition/Elimination	2x+3y+z=-3y-3z=-9-x+2y=14	$2 x + 3 y + z = - 3 y - 3 z = - 9 - x + 2 y = 14$
155151	Solve by Addition/Elimination	2x+2y=83x+y=10	$2 x + 2 y = 83 x + y = 10$
155152	Solve by Addition/Elimination	2x+3y=134x-y=-2	$2 x + 3 y = 134 x - y = - 2$
155153	Solve by Addition/Elimination	2x+3y=-1-2x-2y=-2	$2 x + 3 y = - 1 - 2 x - 2 y = - 2$
155154	Solve by Addition/Elimination	2x-15y=112x-8y=-4	$2 x - 15 y = 112 x - 8 y = - 4$
155155	Solve by Addition/Elimination	2x-10y=4 3x-15y=6	$2 x - 10 y = 4$ $3 x - 15 y = 6$
155156	Solve by Addition/Elimination	2x+y-4=0 2x-y-4=0	$2 x + y - 4 = 0$ $2 x - y - 4 = 0$
155157	Solve by Addition/Elimination	2x+y-z=-3x-y+3z=-2-4x-3y+2z=1	$2 x + y - z = - 3 x - y + 3 z = - 2 - 4 x - 3 y + 2 z = 1$
155158	Solve by Addition/Elimination	2x=96-14y*9x=40-14y	$2 x = 96 - 14 y \cdot 9 x = 40 - 14 y$
155159	Solve by Addition/Elimination	2x=y+1 , -3x+2y=2	$2 x = y + 1$ , $- 3 x + 2 y = 2$
155160	Solve by Addition/Elimination	2x+y=-1-x+3y=18	$2 x + y = - 1 - x + 3 y = 18$
155161	Solve by Addition/Elimination	2x+y=-1 , 4x-y=-11	$2 x + y = - 1$ , $4 x - y = - 11$
155162	Solve by Addition/Elimination	2x+y=3-2x+5y=-9	$2 x + y = 3 - 2 x + 5 y = - 9$
155163	Solve by Addition/Elimination	-2x+y=-82x-y=8	$- 2 x + y = - 82 x - y = 8$
155164	Solve by Addition/Elimination	2x+6y=325x-2y=12	$2 x + 6 y = 325 x - 2 y = 12$
155165	Solve by Addition/Elimination	2x+5y=-4 , -2x+3y=20	$2 x + 5 y = - 4$ , $- 2 x + 3 y = 20$
155166	Solve by Addition/Elimination	2x+7y=-7 -4x-3y=-19	$2 x + 7 y = - 7$ $- 4 x - 3 y = - 19$
155167	Solve by Addition/Elimination	2x+5y+5=2y=3x+17	$2 x + 5 y + 5 = 2 y = 3 x + 17$
155168	Solve by Addition/Elimination	2x+5y=10 3x-4y=12	$2 x + 5 y = 10$ $3 x - 4 y = 12$
155169	Solve by Addition/Elimination	2x+5y=3 -x+3y=-7	$2 x + 5 y = 3$ $- x + 3 y = - 7$
155170	Solve by Addition/Elimination	2x+5y=20 3x-10y=37	$2 x + 5 y = 20$ $3 x - 10 y = 37$
155171	Find the LCD	1/(5x^2)(9x-36)/(5x^3-35x^2)	$\frac{1}{5 x^{2}} \frac{9 x - 36}{5 x^{3} - 35 x^{2}}$
155172	Find the LCD	1/(10x)2/(5x+15)	$\frac{1}{10 x} \frac{2}{5 x + 15}$
155173	Find the LCD	1/(x^2-7x+12)+2/(x^2-2x-8)=3/(x^2-6x+9)	$\frac{1}{x^{2} - 7 x + 12} + \frac{2}{x^{2} - 2 x - 8} = \frac{3}{x^{2} - 6 x + 9}$
155174	Find the LCD	-15/(2k^5)5/(6k^5)	$\frac{- 15}{2 k^{5}} \frac{5}{6 k^{5}}$
155175	Find the LCD	(2g)/(g^2-g-6)-1/(g-3)	$\frac{2 g}{g^{2} - g - 6} - \frac{1}{g - 3}$
155176	Find the LCD	(2p)/(4p^2-1)(6p^3)/(6p+3)	$\frac{2 p}{4 p^{2} - 1} \frac{6 p^{3}}{6 p + 3}$
155177	Find the LCD	2/(5x)+1/4=74/(10x)-1/3	$\frac{2}{5 x} + \frac{1}{4} = \frac{74}{10 x} - \frac{1}{3}$
155178	Find the LCD	-2/(a^2b)+2/(ab^2)	$\frac{- 2}{a^{2} b} + \frac{2}{a b^{2}}$
155179	Find the LCD	4/(2x^4b)6/(8xb^3)	$\frac{4}{2 x^{4} b} \frac{6}{8 x b^{3}}$
155180	Find the LCD	(3x)/7+2/3=7/9	$\frac{3 x}{7} + \frac{2}{3} = \frac{7}{9}$
155181	Find the LCD	(3x)/(x+y)(3y)/(x-y)	$\frac{3 x}{x + y} \frac{3 y}{x - y}$
155182	Find the LCD	(3x^2)/(5x)+(5x+1)/(7x)	$\frac{3 x^{2}}{5 x} + \frac{5 x + 1}{7 x}$
155183	Find the LCD	-3/a9/(6a^2)	$\frac{- 3}{a} \frac{9}{6 a^{2}}$
155184	Find the LCD	(3k)/(k^2-4)2/(k-2)	$\frac{3 k}{k^{2} - 4} \frac{2}{k - 2}$
155185	Find the LCD	(4x)/(x^2+x-6)=(7x)/(x^2-5x-24)	$\frac{4 x}{x^{2} + x - 6} = \frac{7 x}{x^{2} - 5 x - 24}$
155186	Find the LCD	4/(3x-6y)*1/(5x-10y)	$\frac{4}{3 x - 6 y} \cdot \frac{1}{5 x - 10 y}$
155187	Find the LCD	4/53/4	$\frac{4}{5} \frac{3}{4}$
155188	Find the LCD	4/n8/(5n^2)	$\frac{4}{n} \frac{8}{5 n^{2}}$
155189	Find the LCD	4/(x^2-4x)-x/(4x-16)	$\frac{4}{x^{2} - 4 x} - \frac{x}{4 x - 16}$
155190	Find the LCD	x/(x-2)+4/(x^2-8x+12)=1/(x-6)	$\frac{x}{x - 2} + \frac{4}{x^{2} - 8 x + 12} = \frac{1}{x - 6}$
155191	Find the LCD	(x+5)/(10x^2-9x-7)-x/(2x^2+3x+1)+(x+9)/(5x^2-2x-7)	$\frac{x + 5}{10 x^{2} - 9 x - 7} - \frac{x}{2 x^{2} + 3 x + 1} + \frac{x + 9}{5 x^{2} - 2 x - 7}$
155192	Find the LCD	(x^3)/(x^2-2x+1)-4/(x^2-9x+8)	$\frac{x^{3}}{x^{2} - 2 x + 1} \frac{- 4}{x^{2} - 9 x + 8}$
155193	Find the LCD	(9b)/(3b^2+2b-8)-(6b)/(b^2-3b-10)	$\frac{9 b}{3 b^{2} + 2 b - 8} - \frac{6 b}{b^{2} - 3 b - 10}$
155194	Find the LCD	x/16+x/14	$\frac{x}{16} + \frac{x}{14}$
155195	Find the LCD	s/(s^2+6s+9)5/(s^2+4s+3)	$\frac{s}{s^{2} + 6 s + 9} \frac{5}{s^{2} + 4 s + 3}$
155196	Find the LCD	6/(5x)7/(3x+2)	$\frac{6}{5 x} \frac{7}{3 x + 2}$
155197	Find the LCD	5/(x+11)9/(x-11)	$\frac{5}{x + 11} \frac{9}{x - 11}$
155198	Find the LCD	8/(x^2-3x-40)-2/(x^2-8x)	$\frac{8}{x^{2} - 3 x - 40} \frac{- 2}{x^{2} - 8 x}$
155199	Find the LCD	7/(75xy^2)*9/(25x^2y^5)	$\frac{7}{75 x y^{2}} \cdot \frac{9}{25 x^{2} y^{5}}$
155200	Find the LCD	7/s-4/(8s)	$\frac{7}{s} \frac{- 4}{8 s}$