Solve for y
y=4
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-2y-3-\left(4y-1\right)=-12-\left(3y+2\right)
To find the opposite of 2y+3, find the opposite of each term.
-2y-3-4y-\left(-1\right)=-12-\left(3y+2\right)
To find the opposite of 4y-1, find the opposite of each term.
-2y-3-4y+1=-12-\left(3y+2\right)
The opposite of -1 is 1.
-6y-3+1=-12-\left(3y+2\right)
Combine -2y and -4y to get -6y.
-6y-2=-12-\left(3y+2\right)
Add -3 and 1 to get -2.
-6y-2=-12-3y-2
To find the opposite of 3y+2, find the opposite of each term.
-6y-2=-14-3y
Subtract 2 from -12 to get -14.
-6y-2+3y=-14
Add 3y to both sides.
-3y-2=-14
Combine -6y and 3y to get -3y.
-3y=-14+2
Add 2 to both sides.
-3y=-12
Add -14 and 2 to get -12.
y=\frac{-12}{-3}
Divide both sides by -3.
y=4
Divide -12 by -3 to get 4.
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}