Solve for x
x=y-1
Solve for y
y=x+1
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3xy-9x-4y+12=\left(3y-7\right)\left(x-2\right)
Use the distributive property to multiply 3x-4 by y-3.
3xy-9x-4y+12=3yx-6y-7x+14
Use the distributive property to multiply 3y-7 by x-2.
3xy-9x-4y+12-3yx=-6y-7x+14
Subtract 3yx from both sides.
-9x-4y+12=-6y-7x+14
Combine 3xy and -3yx to get 0.
-9x-4y+12+7x=-6y+14
Add 7x to both sides.
-2x-4y+12=-6y+14
Combine -9x and 7x to get -2x.
-2x+12=-6y+14+4y
Add 4y to both sides.
-2x+12=-2y+14
Combine -6y and 4y to get -2y.
-2x=-2y+14-12
Subtract 12 from both sides.
-2x=-2y+2
Subtract 12 from 14 to get 2.
-2x=2-2y
The equation is in standard form.
\frac{-2x}{-2}=\frac{2-2y}{-2}
Divide both sides by -2.
x=\frac{2-2y}{-2}
Dividing by -2 undoes the multiplication by -2.
x=y-1
Divide -2y+2 by -2.
3xy-9x-4y+12=\left(3y-7\right)\left(x-2\right)
Use the distributive property to multiply 3x-4 by y-3.
3xy-9x-4y+12=3yx-6y-7x+14
Use the distributive property to multiply 3y-7 by x-2.
3xy-9x-4y+12-3yx=-6y-7x+14
Subtract 3yx from both sides.
-9x-4y+12=-6y-7x+14
Combine 3xy and -3yx to get 0.
-9x-4y+12+6y=-7x+14
Add 6y to both sides.
-9x+2y+12=-7x+14
Combine -4y and 6y to get 2y.
2y+12=-7x+14+9x
Add 9x to both sides.
2y+12=2x+14
Combine -7x and 9x to get 2x.
2y=2x+14-12
Subtract 12 from both sides.
2y=2x+2
Subtract 12 from 14 to get 2.
\frac{2y}{2}=\frac{2x+2}{2}
Divide both sides by 2.
y=\frac{2x+2}{2}
Dividing by 2 undoes the multiplication by 2.
y=x+1
Divide 2+2x by 2.
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}