Solve for x
x=-56
Graph
Share
Copied to clipboard
0.75x+15=2+0.5\left(x-2\right)
Use the distributive property to multiply 0.75 by x+20.
0.75x+15=2+0.5x-1
Use the distributive property to multiply 0.5 by x-2.
0.75x+15=1+0.5x
Subtract 1 from 2 to get 1.
0.75x+15-0.5x=1
Subtract 0.5x from both sides.
0.25x+15=1
Combine 0.75x and -0.5x to get 0.25x.
0.25x=1-15
Subtract 15 from both sides.
0.25x=-14
Subtract 15 from 1 to get -14.
x=\frac{-14}{0.25}
Divide both sides by 0.25.
x=\frac{-1400}{25}
Expand \frac{-14}{0.25} by multiplying both numerator and the denominator by 100.
x=-56
Divide -1400 by 25 to get -56.
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}