Solve for x
x=\frac{-2y-4}{3}
Solve for y
y=-\frac{3x}{2}-2
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3-9x+4\left(x-2y\right)+2\left(y-2x\right)=15
Use the distributive property to multiply 3 by 1-3x.
3-9x+4x-8y+2\left(y-2x\right)=15
Use the distributive property to multiply 4 by x-2y.
3-5x-8y+2\left(y-2x\right)=15
Combine -9x and 4x to get -5x.
3-5x-8y+2y-4x=15
Use the distributive property to multiply 2 by y-2x.
3-5x-6y-4x=15
Combine -8y and 2y to get -6y.
3-9x-6y=15
Combine -5x and -4x to get -9x.
-9x-6y=15-3
Subtract 3 from both sides.
-9x-6y=12
Subtract 3 from 15 to get 12.
-9x=12+6y
Add 6y to both sides.
-9x=6y+12
The equation is in standard form.
\frac{-9x}{-9}=\frac{6y+12}{-9}
Divide both sides by -9.
x=\frac{6y+12}{-9}
Dividing by -9 undoes the multiplication by -9.
x=\frac{-2y-4}{3}
Divide 12+6y by -9.
3-9x+4\left(x-2y\right)+2\left(y-2x\right)=15
Use the distributive property to multiply 3 by 1-3x.
3-9x+4x-8y+2\left(y-2x\right)=15
Use the distributive property to multiply 4 by x-2y.
3-5x-8y+2\left(y-2x\right)=15
Combine -9x and 4x to get -5x.
3-5x-8y+2y-4x=15
Use the distributive property to multiply 2 by y-2x.
3-5x-6y-4x=15
Combine -8y and 2y to get -6y.
3-9x-6y=15
Combine -5x and -4x to get -9x.
-9x-6y=15-3
Subtract 3 from both sides.
-9x-6y=12
Subtract 3 from 15 to get 12.
-6y=12+9x
Add 9x to both sides.
-6y=9x+12
The equation is in standard form.
\frac{-6y}{-6}=\frac{9x+12}{-6}
Divide both sides by -6.
y=\frac{9x+12}{-6}
Dividing by -6 undoes the multiplication by -6.
y=-\frac{3x}{2}-2
Divide 12+9x by -6.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}