Solve for x
x=28.2
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93.6-3x=9
Add 1.9 and 7.1 to get 9.
-3x=9-93.6
Subtract 93.6 from both sides.
-3x=-84.6
Subtract 93.6 from 9 to get -84.6.
x=\frac{-84.6}{-3}
Divide both sides by -3.
x=\frac{-846}{-30}
Expand \frac{-84.6}{-3} by multiplying both numerator and the denominator by 10.
x=\frac{141}{5}
Reduce the fraction \frac{-846}{-30} to lowest terms by extracting and canceling out -6.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
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