Solve for x
x=\frac{4}{5}=0.8
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3x-5x=-\frac{8}{5}
Subtract 5x from both sides.
-2x=-\frac{8}{5}
Combine 3x and -5x to get -2x.
x=\frac{-\frac{8}{5}}{-2}
Divide both sides by -2.
x=\frac{-8}{5\left(-2\right)}
Express \frac{-\frac{8}{5}}{-2} as a single fraction.
x=\frac{-8}{-10}
Multiply 5 and -2 to get -10.
x=\frac{4}{5}
Reduce the fraction \frac{-8}{-10} to lowest terms by extracting and canceling out -2.
Examples
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y = 3x + 4
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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
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