Solve for y
y=-30
Graph
Quiz
Linear Equation
5 problems similar to:
\frac { 3 } { 10 } \cdot y - 9 = - 15 + \frac { y } { 10 }
Share
Copied to clipboard
3y-90=-150+y
Multiply both sides of the equation by 10.
3y-90-y=-150
Subtract y from both sides.
2y-90=-150
Combine 3y and -y to get 2y.
2y=-150+90
Add 90 to both sides.
2y=-60
Add -150 and 90 to get -60.
y=\frac{-60}{2}
Divide both sides by 2.
y=-30
Divide -60 by 2 to get -30.
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}