Solve for x
x = -\frac{23}{7} = -3\frac{2}{7} \approx -3.285714286
Graph
Share
Copied to clipboard
28-19x=34+40-5x
Use the distributive property to multiply 5 by 8-x.
28-19x=74-5x
Add 34 and 40 to get 74.
28-19x+5x=74
Add 5x to both sides.
28-14x=74
Combine -19x and 5x to get -14x.
-14x=74-28
Subtract 28 from both sides.
-14x=46
Subtract 28 from 74 to get 46.
x=\frac{46}{-14}
Divide both sides by -14.
x=-\frac{23}{7}
Reduce the fraction \frac{46}{-14} to lowest terms by extracting and canceling out 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}