Solve for x
x = \frac{93}{17} = 5\frac{8}{17} \approx 5.470588235
Graph
Share
Copied to clipboard
-9x+55=\frac{1}{2}\left(-x+17\right)
Combine -2x and x to get -x.
-9x+55=\frac{1}{2}\left(-1\right)x+\frac{1}{2}\times 17
Use the distributive property to multiply \frac{1}{2} by -x+17.
-9x+55=-\frac{1}{2}x+\frac{1}{2}\times 17
Multiply \frac{1}{2} and -1 to get -\frac{1}{2}.
-9x+55=-\frac{1}{2}x+\frac{17}{2}
Multiply \frac{1}{2} and 17 to get \frac{17}{2}.
-9x+55+\frac{1}{2}x=\frac{17}{2}
Add \frac{1}{2}x to both sides.
-\frac{17}{2}x+55=\frac{17}{2}
Combine -9x and \frac{1}{2}x to get -\frac{17}{2}x.
-\frac{17}{2}x=\frac{17}{2}-55
Subtract 55 from both sides.
-\frac{17}{2}x=\frac{17}{2}-\frac{110}{2}
Convert 55 to fraction \frac{110}{2}.
-\frac{17}{2}x=\frac{17-110}{2}
Since \frac{17}{2} and \frac{110}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{17}{2}x=-\frac{93}{2}
Subtract 110 from 17 to get -93.
x=-\frac{93}{2}\left(-\frac{2}{17}\right)
Multiply both sides by -\frac{2}{17}, the reciprocal of -\frac{17}{2}.
x=\frac{-93\left(-2\right)}{2\times 17}
Multiply -\frac{93}{2} times -\frac{2}{17} by multiplying numerator times numerator and denominator times denominator.
x=\frac{186}{34}
Do the multiplications in the fraction \frac{-93\left(-2\right)}{2\times 17}.
x=\frac{93}{17}
Reduce the fraction \frac{186}{34} 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}