Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
150701	Solve by Addition/Elimination	1/3x+y=4/31/6x+1/5y=7/6	$\frac{1}{3} x + y = \frac{4}{3} \frac{1}{6} x + \frac{1}{5} y = \frac{7}{6}$
150702	Solve by Addition/Elimination	12x-10y=26x-5y=4	$12 x - 10 y = 26 x - 5 y = 4$
150703	Solve by Addition/Elimination	11x-5y=809x-15y=120	$11 x - 5 y = 809 x - 15 y = 120$
150704	Solve by Addition/Elimination	12x+3y=65x+2y=4	$12 x + 3 y = 65 x + 2 y = 4$
150705	Solve by Addition/Elimination	10y+7x=29 -5y-9x=2	$10 y + 7 x = 29$ $- 5 y - 9 x = 2$
150706	Solve by Addition/Elimination	10x+6y=2812x-6y=-6	$10 x + 6 y = 2812 x - 6 y = - 6$
150707	Solve by Addition/Elimination	x/3+y/12=-33/4x/4+y/6=-3/2	$\frac{x}{3} + \frac{y}{12} = - \frac{33}{4} \frac{x}{4} + \frac{y}{6} = - \frac{3}{2}$
150708	Solve by Addition/Elimination	x/7-y=2-x/2+(7y)/2=-7	$\frac{x}{7} - y = 2 - \frac{x}{2} + \frac{7 y}{2} = - 7$
150709	Solve by Addition/Elimination	21x+7y=42-5x+5y=10	$21 x + 7 y = 42 - 5 x + 5 y = 10$
150710	Solve by Addition/Elimination	21x+7y=-7y=-3x-1	$21 x + 7 y = - 7 y = - 3 x - 1$
150711	Solve by Addition/Elimination	2c-15d+7e=-30 , -c+8d-4e=16 , -c+3d+e=6	$2 c - 15 d + 7 e = - 30$ , $- c + 8 d - 4 e = 16$ , $- c + 3 d + e = 6$
150712	Solve by Addition/Elimination	27=-3y+x*2y=10-4x	$27 = - 3 y + x \cdot 2 y = 10 - 4 x$
150713	Solve by Addition/Elimination	12x+4y=0-72x-24y=0	$12 x + 4 y = 0 - 72 x - 24 y = 0$
150714	Solve by Addition/Elimination	-10x-7y=512x-8y=-4	$- 10 x - 7 y = 512 x - 8 y = - 4$
150715	Solve by Addition/Elimination	19x-8y=1014x-7y=2	$19 x - 8 y = 1014 x - 7 y = 2$
150716	Solve by Addition/Elimination	15x-12y=1330x+9y=4	$15 x - 12 y = 1330 x + 9 y = 4$
150717	Find the LCD	(6y)/(y^2-16)6/(y^2-4y)	$\frac{6 y}{y^{2} - 16} \frac{6}{y^{2} - 4 y}$
150718	Find the LCD	s/(s^2+6s+9)+5/(s^2+4s+3)	$\frac{s}{s^{2} + 6 s + 9} + \frac{5}{s^{2} + 4 s + 3}$
150719	Find the LCD	(m-4)/(m^2+8m+16)-(m-4)/(m+4)	$\frac{m - 4}{m^{2} + 8 m + 16} - \frac{m - 4}{m + 4}$
150720	Find the LCD	4/(m+9)5/(m^2-81)	$\frac{4}{m + 9} \frac{5}{m^{2} - 81}$
150721	Find the LCD	(4x+20)/(x^2+2x-15)	$\frac{4 x + 20}{x^{2} + 2 x - 15}$
150722	Find the LCD	(4k)/(k^2-9)+2/(k-3)	$\frac{4 k}{k^{2} - 9} + \frac{2}{k - 3}$
150723	Find the LCD	3/x+1/(xyz)+2/(xy)	$\frac{3}{x} + \frac{1}{x y z} + \frac{2}{x y}$
150724	Find the LCD	(2x)/(7x-21)1/(2x-6)	$\frac{2 x}{7 x - 21} \frac{1}{2 x - 6}$
150725	Find the LCD	3/209/8	$\frac{3}{20} \frac{9}{8}$
150726	Find the LCD	18/(r-4)	$\frac{18}{r - 4}$
150727	Find the LCD	10/(3m^2n)1/(6mn^4)	$\frac{10}{3 m^{2} n} \frac{1}{6 m n^{4}}$
150728	Solve by Addition/Elimination	2x+5y=2-3x-y=-3	$2 x + 5 y = 2 - 3 x - y = - 3$
150729	Solve by Addition/Elimination	2x+4y=-8 -2x+3y=22	$2 x + 4 y = - 8$ $- 2 x + 3 y = 22$
150730	Solve by Addition/Elimination	2x+7y=-38 -5x-8y=38	$2 x + 7 y = - 38$ $- 5 x - 8 y = 38$
150731	Solve by Addition/Elimination	2x+9y=23x-9y=3	$2 x + 9 y = 23 x - 9 y = 3$
150732	Solve by Addition/Elimination	-2x-10y=10-3x+10y=-10	$- 2 x - 10 y = 10 - 3 x + 10 y = - 10$
150733	Solve by Addition/Elimination	2x-11y=76x-3y=7	$2 x - 11 y = 76 x - 3 y = 7$
150734	Solve by Addition/Elimination	2x-12=-4y , 7x+6y=-14	$2 x - 12 = - 4 y$ , $7 x + 6 y = - 14$
150735	Solve by Addition/Elimination	2x+3y=6x+9y=8	$2 x + 3 y = 6 x + 9 y = 8$
150736	Solve by Addition/Elimination	-2x+3y=1 2x-y=5	$- 2 x + 3 y = 1$ $2 x - y = 5$
150737	Solve by Addition/Elimination	2x+3y=44x+6y=9	$2 x + 3 y = 44 x + 6 y = 9$
150738	Solve by Addition/Elimination	2x+2y-3z=3-5x-2y+5z=14-8x-2y+7z=31	$2 x + 2 y - 3 z = 3 - 5 x - 2 y + 5 z = 14 - 8 x - 2 y + 7 z = 31$
150739	Solve by Addition/Elimination	-2x+15y=-24 2x+9y=24	$- 2 x + 15 y = - 24$ $2 x + 9 y = 24$
150740	Solve by Addition/Elimination	2x+12y=63x+5y=-17	$2 x + 12 y = 63 x + 5 y = - 17$
150741	Solve by Addition/Elimination	2x+3y=9 , x+5y=8	$2 x + 3 y = 9$ , $x + 5 y = 8$
150742	Solve by Addition/Elimination	2x+4y=13x-5y=7	$2 x + 4 y = 13 x - 5 y = 7$
150743	Solve by Addition/Elimination	2x+4y=16 2x-4y=0	$2 x + 4 y = 16$ $2 x - 4 y = 0$
150744	Solve by Addition/Elimination	2x+3y=76x+9y=20	$2 x + 3 y = 76 x + 9 y = 20$
150745	Solve by Addition/Elimination	2x+3y=6-4x-6y=-12	$2 x + 3 y = 6 - 4 x - 6 y = - 12$
150746	Solve by Addition/Elimination	2x+3y=6x+4y=-2	$2 x + 3 y = 6 x + 4 y = - 2$
150747	Solve by Addition/Elimination	-2x-5y=9 3x+11y=4	$- 2 x - 5 y = 9$ $3 x + 11 y = 4$
150748	Solve by Addition/Elimination	2x-y+z=9x+y-2z=-1-x+2y+2z=-5	$2 x - y + z = 9 x + y - 2 z = - 1 - x + 2 y + 2 z = - 5$
150749	Solve by Addition/Elimination	2x-8y=-67x+4y=2	$2 x - 8 y = - 67 x + 4 y = 2$
150750	Solve by Addition/Elimination	-2x-9y=12-2x-7y=8	$- 2 x - 9 y = 12 - 2 x - 7 y = 8$
150751	Solve by Addition/Elimination	2x-4y=8 , 3x-6y=12	$2 x - 4 y = 8$ , $3 x - 6 y = 12$
150752	Solve by Addition/Elimination	-3x+2y=1-10x-7y=-5	$- 3 x + 2 y = 1 - 10 x - 7 y = - 5$
150753	Solve by Addition/Elimination	3x+12y=212x+10y=16	$3 x + 12 y = 212 x + 10 y = 16$
150754	Solve by Addition/Elimination	2x-4y=-6-x+2y=3	$2 x - 4 y = - 6 - x + 2 y = 3$
150755	Solve by Addition/Elimination	2y=-12-6x*2x=12-2y	$2 y = - 12 - 6 x \cdot 2 x = 12 - 2 y$
150756	Solve by Addition/Elimination	2y=x+8x-2y=-8	$2 y = x + 8 x - 2 y = - 8$
150757	Solve by Addition/Elimination	2x-y=-13x-2y=1	$2 x - y = - 13 x - 2 y = 1$
150758	Solve by Addition/Elimination	3x-y=6-3x+y=-6	$3 x - y = 6 - 3 x + y = - 6$
150759	Solve by Addition/Elimination	-3y+4x=13 -5y-6x=-67	$- 3 y + 4 x = 13$ $- 5 y - 6 x = - 67$
150760	Solve by Addition/Elimination	3x-y=2-8x+2y=4	$3 x - y = 2 - 8 x + 2 y = 4$
150761	Solve by Addition/Elimination	3x-y=-4-12x+4y=-16	$3 x - y = - 4 - 12 x + 4 y = - 16$
150762	Solve by Addition/Elimination	-4+10x=-3y-4x=24-2y	$- 4 + 10 x = - 3 y - 4 x = 24 - 2 y$
150763	Solve by Addition/Elimination	3x-7y=21-5x+4y=-35	$3 x - 7 y = 21 - 5 x + 4 y = - 35$
150764	Solve by Addition/Elimination	3x-9y=74x-7y=7	$3 x - 9 y = 74 x - 7 y = 7$
150765	Solve by Addition/Elimination	3x-9y=76x-3y=7	$3 x - 9 y = 76 x - 3 y = 7$
150766	Solve by Addition/Elimination	-3x-9y=184x+3y=12	$- 3 x - 9 y = 184 x + 3 y = 12$
150767	Solve by Addition/Elimination	3x-6y=15 , 2x-4y=10	$3 x - 6 y = 15$ , $2 x - 4 y = 10$
150768	Solve by Addition/Elimination	-3x-5y=-7 -4x+5y=14	$- 3 x - 5 y = - 7$ $- 4 x + 5 y = 14$
150769	Solve by Addition/Elimination	-3x-5y=-7-4x+5y=14	$- 3 x - 5 y = - 7 - 4 x + 5 y = 14$
150770	Solve by Addition/Elimination	-4x+4y=-8 x-4y=-7	$- 4 x + 4 y = - 8$ $x - 4 y = - 7$
150771	Solve by Addition/Elimination	4x+5y=64x+5y=5	$4 x + 5 y = 64 x + 5 y = 5$
150772	Solve by Addition/Elimination	4x+5y=-2 , 4x+3y=10	$4 x + 5 y = - 2$ , $4 x + 3 y = 10$
150773	Solve by Addition/Elimination	4x+3y=11 x-y=8	$4 x + 3 y = 11$ $x - y = 8$
150774	Solve by Addition/Elimination	4x+3y=6 -4x+2y=14	$4 x + 3 y = 6$ $- 4 x + 2 y = 14$
150775	Solve by Addition/Elimination	-4x+2y=120x-10y=-5	$- 4 x + 2 y = 120 x - 10 y = - 5$
150776	Solve by Addition/Elimination	4x+2y=12x+y=3	$4 x + 2 y = 12 x + y = 3$
150777	Solve by Addition/Elimination	4x+2y=85x-3y=4	$4 x + 2 y = 85 x - 3 y = 4$
150778	Solve by Addition/Elimination	4x+2y=6x-3y=5	$4 x + 2 y = 6 x - 3 y = 5$
150779	Solve by Addition/Elimination	4x+2y=0-8x-4y=0	$4 x + 2 y = 0 - 8 x - 4 y = 0$
150780	Solve by Addition/Elimination	3x+6y=363x-6y=0	$3 x + 6 y = 363 x - 6 y = 0$
150781	Solve by Addition/Elimination	3x+6y-z=7x+y+3z=4	$3 x + 6 y - z = 7 x + y + 3 z = 4$
150782	Solve by Addition/Elimination	3x+6y-z=7x+y+3z=6	$3 x + 6 y - z = 7 x + y + 3 z = 6$
150783	Solve by Addition/Elimination	3x+5y-z=9x+y+2z=4	$3 x + 5 y - z = 9 x + y + 2 z = 4$
150784	Solve by Addition/Elimination	3x+y=3x-3y=-2	$3 x + y = 3 x - 3 y = - 2$
150785	Solve by Addition/Elimination	-3x+8y=5 , 6x-2y=10	$- 3 x + 8 y = 5$ , $6 x - 2 y = 10$
150786	Solve by Addition/Elimination	3x+y-z=3-x+2y+z=0-5x+2y+3z=-2	$3 x + y - z = 3 - x + 2 y + z = 0 - 5 x + 2 y + 3 z = - 2$
150787	Solve by Addition/Elimination	-3x+y=-63x-y=6	$- 3 x + y = - 63 x - y = 6$
150788	Solve by Addition/Elimination	3x+y=9x+2y=3	$3 x + y = 9 x + 2 y = 3$
150789	Solve by Addition/Elimination	3x-11y=-1 2x-5y=-3	$3 x - 11 y = - 1$ $2 x - 5 y = - 3$
150790	Solve by Addition/Elimination	3x-4y=1 , -6x+8y=-2	$3 x - 4 y = 1$ , $- 6 x + 8 y = - 2$
150791	Solve by Addition/Elimination	3x-2y=6 6x-4y=12	$3 x - 2 y = 6$ $6 x - 4 y = 12$
150792	Solve by Addition/Elimination	3x-2y=75x+6y=7	$3 x - 2 y = 75 x + 6 y = 7$
150793	Solve by Addition/Elimination	3x+2y=167x+y=19	$3 x + 2 y = 167 x + y = 19$
150794	Solve by Addition/Elimination	3x+2y=-17x-3y=9	$3 x + 2 y = - 17 x - 3 y = 9$
150795	Solve by Addition/Elimination	3x+2y=a*5x+y=b	$3 x + 2 y = a \cdot 5 x + y = b$
150796	Solve by Addition/Elimination	3x+4y=6x+8y=3	$3 x + 4 y = 6 x + 8 y = 3$
150797	Solve by Addition/Elimination	3x+4y=6x+8y=4	$3 x + 4 y = 6 x + 8 y = 4$
150798	Solve by Addition/Elimination	3x+3y=27	$3 x + 3 y = 27$
150799	Solve by Addition/Elimination	-3x+5y=-115x-9y=19	$- 3 x + 5 y = - 115 x - 9 y = 19$
150800	Solve by Addition/Elimination	3x+4y=86x-2y=9	$3 x + 4 y = 86 x - 2 y = 9$