Solve for x
x = -\frac{32}{5} = -6\frac{2}{5} = -6.4
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5x+12=-20
Multiply both sides of the equation by 4.
5x=-20-12
Subtract 12 from both sides.
5x=-32
Subtract 12 from -20 to get -32.
x=\frac{-32}{5}
Divide both sides by 5.
x=-\frac{32}{5}
Fraction \frac{-32}{5} can be rewritten as -\frac{32}{5} by extracting the negative sign.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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