Solve for y
y=-2
Graph
Share
Copied to clipboard
8\left(y+2\right)-3\left(4y-1\right)=9\left(1-y\right)
Multiply 4 and 2 to get 8.
8y+16-3\left(4y-1\right)=9\left(1-y\right)
Use the distributive property to multiply 8 by y+2.
8y+16-12y+3=9\left(1-y\right)
Use the distributive property to multiply -3 by 4y-1.
-4y+16+3=9\left(1-y\right)
Combine 8y and -12y to get -4y.
-4y+19=9\left(1-y\right)
Add 16 and 3 to get 19.
-4y+19=9-9y
Use the distributive property to multiply 9 by 1-y.
-4y+19+9y=9
Add 9y to both sides.
5y+19=9
Combine -4y and 9y to get 5y.
5y=9-19
Subtract 19 from both sides.
5y=-10
Subtract 19 from 9 to get -10.
y=\frac{-10}{5}
Divide both sides by 5.
y=-2
Divide -10 by 5 to get -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}