Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
9101	Solve for x	x-9 square root of x+20=0	$x - 9 \sqrt{x} + 20 = 0$
9102	Solve for x	x-2y+3z=11	$x - 2 y + 3 z = 11$
9103	Solve for x	x-(4(-25))/14-7/2=5	$x - \frac{4 (- 25)}{14} - \frac{7}{2} = 5$
9104	Solve for x	x-3cos(x)=0	$x - 3 \cos (x) = 0$
9105	Solve for x	x-10 square root of x+21=0	$x - 10 \sqrt{x} + 21 = 0$
9106	Solve for x	x-13 square root of x+36=0	$x - 13 \sqrt{x} + 36 = 0$
9107	Solve for x	x-2 square root of x-3=0	$x - 2 \sqrt{x} - 3 = 0$
9108	Solve for x	x = natural log of 20	$x = \ln (20)$
9109	Solve for x	x=tan(45/4*pi)	$x = \tan (\frac{45}{4} \cdot π)$
9110	Solve for x	x=xcos(x)+ysin(x)	$x = x \cos (x) + y \sin (x)$
9111	Solve for x	x = log base 36 of 6	$x = \log_{36} (6)$
9112	Solve for x	x = natural log of 1/e	$x = \ln (\frac{1}{e})$
9113	Solve for x	x=sin(39/4*pi)	$x = \sin (\frac{39}{4} \cdot π)$
9114	Solve for x	x = natural log of 7-x^2	$x = \ln (7 - x^{2})$
9115	Solve for y	(-3/5)^2+y^2=1	${(- \frac{3}{5})}^{2} + y^{2} = 1$
9116	Solve for y	1/(10^y)=100^(y+3)	$\frac{1}{10^{y}} = 100^{y + 3}$
9117	Solve for y	(-5/13)^2+y^2=1	${(- \frac{5}{13})}^{2} + y^{2} = 1$
9118	Solve for y	(2y+8)^2=64	${(2 y + 8)}^{2} = 64$
9119	Solve for y	2/(y+2)+3/y=-y/(y+2)	$\frac{2}{y + 2} + \frac{3}{y} = - \frac{y}{y + 2}$
9120	Solve for y	40^2+y^2=41^2	$40^{2} + y^{2} = 41^{2}$
9121	Solve for y	e^y=15	$e^{y} = 15$
9122	Solve for y	12^(y+9)=15	$12^{y + 9} = 15$
9123	Solve for y	e^y=11	$e^{y} = 11$
9124	Solve for y	e^5=y	$e^{5} = y$
9125	Solve for y	(8y)/(2y+4)+(7y+14)/(4y+8)=(2y-4)/(y+2)	$\frac{8 y}{2 y + 4} + \frac{7 y + 14}{4 y + 8} = \frac{2 y - 4}{y + 2}$
9126	Solve for y	cos(y)^2-sin(y)^2=1-2sin(y)^2	$\cos^{2} (y) - \sin^{2} (y) = 1 - 2 \sin^{2} (y)$
9127	Solve for y	16/(y-4)-4/y=(16y+4)/(y^2-16)	$\frac{16}{y - 4} - \frac{4}{y} = \frac{16 y + 4}{y^{2} - 16}$
9128	Solve for y	4/y-5=18/(2y)	$\frac{4}{y} - 5 = \frac{18}{2 y}$
9129	Solve for y	4^y=1/2	$4^{y} = \frac{1}{2}$
9130	Solve for y	7^2+y^2=25^2	$7^{2} + y^{2} = 25^{2}$
9131	Solve for y	8/(4y-8)-1=2/(y-2)	$\frac{8}{4 y - 8} - 1 = \frac{2}{y - 2}$
9132	Solve for y	log base 2 of y=4	$\log_{2} (y) = 4$
9133	Solve for y	e^y=3	$e^{y} = 3$
9134	Solve for y	log base 3 of y=1/4* log base 3 of 16+1/3* log base 3 of 64	$\log_{3} (y) = \frac{1}{4} \cdot \log_{3} (16) + \frac{1}{3} \cdot \log_{3} (64)$
9135	Solve for y	e^y=5	$e^{y} = 5$
9136	Solve for y	e^y=7	$e^{y} = 7$
9137	Solve for y	e^y=8	$e^{y} = 8$
9138	Solve for y	log base 5 of x+ log base 5 of y = log base 5 of 3+1	$\log_{5} (x) + \log_{5} (y) = \log_{5} (3) + 1$
9139	Solve for y	log base y of 81=-4	$\log_{y} (81) = - 4$
9140	Solve for y	log base 7 of y=2	$\log_{7} (y) = 2$
9141	Solve for y	square root of y-15+ square root of y=15	$\sqrt{y - 15} + \sqrt{y} = 15$
9142	Solve for y	2x+3y=5	$2 x + 3 y = 5$
9143	Solve for y	2y+5=-5	$2 y + 5 = - 5$
9144	Solve for y	1250(380-y)+800y=394000	$1250 (380 - y) + 800 y = 394000$
9145	Solve for y	13=v((-1+9)^2+(y-2)^2)	$13 = v ({(- 1 + 9)}^{2} + {(y - 2)}^{2})$
9146	Solve for y	13 = square root of 12^2+y^2	$13 = \sqrt{12^{2} + y^{2}}$
9147	Solve for y	2=2/3-7/y	$2 = \frac{2}{3} - \frac{7}{y}$
9148	Solve for y	x^2-y^2=9	$x^{2} - y^{2} = 9$
9149	Solve for y	x^2+y^2=36	$x^{2} + y^{2} = 36$
9150	Solve for y	x^2-16=8y	$x^{2} - 16 = 8 y$
9151	Solve for y	x^2+y^2=25	$x^{2} + y^{2} = 25$
9152	Solve for y	cube root of y=2	$\sqrt[3]{y} = 2$
9153	Solve for y	y^2=-144	$y^{2} = - 144$
9154	Solve for y	y^2+y-2400=0	$y^{2} + y - 2400 = 0$
9155	Solve for y	y^-2+5y=0	$y^{- 2} + 5 y = 0$
9156	Solve for y	y^2-5y-2=0	$y^{2} - 5 y - 2 = 0$
9157	Solve for y	y^4+7y^2-144=0	$y^{4} + 7 y^{2} - 144 = 0$
9158	Solve for y	y^(3/2)=5y	$y^{\frac{3}{2}} = 5 y$
9159	Solve for y	y^4-26y^2+25=0	$y^{4} - 26 y^{2} + 25 = 0$
9160	Solve for y	y^4-4y^2=-3	$y^{4} - 4 y^{2} = - 3$
9161	Solve for x	sin(x)cos(y)+cos(x)sin(y)=0	$\sin (x) \cos (y) + \cos (x) \sin (y) = 0$
9162	Solve for x	sin(x)csc(x)=1	$\sin (x) \csc (x) = 1$
9163	Solve for x	x^3+343=0	$x^{3} + 343 = 0$
9164	Solve for x	sin(x)=1.2	$\sin (x) = 1.2$
9165	Solve for x	sin(x)=12/13	$\sin (x) = \frac{12}{13}$
9166	Solve for x	sin(x)=- square root of 2/2	$\sin (x) = - \sqrt{\frac{2}{2}}$
9167	Solve for x	sin(x)=0.28	$\sin (x) = 0.28$
9168	Solve for x	sin(x)=-0.35	$\sin (x) = - 0.35$
9169	Solve for x	sin(x)=-3/5	$\sin (x) = - \frac{3}{5}$
9170	Solve for x	sin(4x)=1/2	$\sin (4 x) = \frac{1}{2}$
9171	Solve for x	sin(x)=1/( square root of 2)	$\sin (x) = \frac{1}{\sqrt{2}}$
9172	Solve for x	sin(x)=2/3	$\sin (x) = \frac{2}{3}$
9173	Solve for x	sin(x)(2cos(x)- square root of 2)=0	$\sin (x) (2 \cos (x) - \sqrt{2}) = 0$
9174	Solve for x	sin(4x)=-2sin(2x)	$\sin (4 x) = - 2 \sin (2 x)$
9175	Solve for x	sin(9x)=1	$\sin (9 x) = 1$
9176	Solve for x	sin(x)- square root of 1-3sin(x)^2=0	$\sin (x) - \sqrt{1 - 3 \sin^{2} (x)} = 0$
9177	Solve for x	sin(x)=(4/13+1/13)	$\sin (x) = (\frac{4}{13} + \frac{1}{13})$
9178	Solve for x	sin(x)=0.2	$\sin (x) = 0.2$
9179	Solve for x	sin(3x-pi/4)=1	$\sin (3 x - \frac{π}{4}) = 1$
9180	Solve for x	sin(5x)=1	$\sin (5 x) = 1$
9181	Solve for x	sin(6x)=0	$\sin (6 x) = 0$
9182	Solve for x	sin(2x+pi/3)=( square root of 3)/2	$\sin (2 x + \frac{π}{3}) = \frac{\sqrt{3}}{2}$
9183	Solve for x	sin(37)=x	$\sin (37) = x$
9184	Solve for x	sin(2x)-2cos(x)=0	$\sin (2 x) - 2 \cos (x) = 0$
9185	Solve for x	sin(2x)=-13cos(x)	$\sin (2 x) = - 13 \cos (x)$
9186	Solve for x	sin(2x)=2sin(x)	$\sin (2 x) = 2 \sin (x)$
9187	Solve for x	sin(2x)=0.5	$\sin (2 x) = 0.5$
9188	Solve for x	sin(pi/2-x)=sin(pi/2+x)	$\sin (\frac{π}{2} - x) = \sin (\frac{π}{2} + x)$
9189	Solve for x	sin(pi/5)=111/x	$\sin (\frac{π}{5}) = \frac{111}{x}$
9190	Solve for x	sin(1/2x)=0	$\sin (\frac{1}{2} x) = 0$
9191	Solve for x	sec(x)csc(x)=2sec(x)	$\sec (x) \csc (x) = 2 \sec (x)$
9192	Solve for x	sec(x)=4	$\sec (x) = 4$
9193	Solve for x	sin(2x)=(- square root of 3)/2	$\sin (2 x) = \frac{- \sqrt{3}}{2}$
9194	Solve for x	tan(12)=3/x	$\tan (12) = \frac{3}{x}$
9195	Solve for x	sin(x+pi)=-sin(x)	$\sin (x + π) = - \sin (x)$
9196	Solve for x	tan(x)=x/2	$\tan (x) = \frac{x}{2}$
9197	Solve for x	tan((5pi)/6)=y/x	$\tan (\frac{5 π}{6}) = \frac{y}{x}$
9198	Solve for x	tan(arctan(x))=x	$\tan (\arctan (x)) = x$
9199	Solve for x	tan(20)=x/200	$\tan (20) = \frac{x}{200}$
9200	Solve for x	tan(25)=x/190	$\tan (25) = \frac{x}{190}$