Solve for x
x = \frac{53}{13} = 4\frac{1}{13} \approx 4.076923077
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-39x=-159
Subtract 159 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-159}{-39}
Divide both sides by -39.
x=\frac{53}{13}
Reduce the fraction \frac{-159}{-39} to lowest terms by extracting and canceling out -3.
Examples
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Matrix
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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
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Limits
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