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-99.4
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-99.4
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\frac{-4216}{40}+5\left(-2\right)-\left(-16\right)
Expand \frac{-421.6}{4} by multiplying both numerator and the denominator by 10.
-\frac{527}{5}+5\left(-2\right)-\left(-16\right)
Reduce the fraction \frac{-4216}{40} to lowest terms by extracting and canceling out 8.
-\frac{527}{5}-10-\left(-16\right)
Multiply 5 and -2 to get -10.
-\frac{527}{5}-\frac{50}{5}-\left(-16\right)
Convert 10 to fraction \frac{50}{5}.
\frac{-527-50}{5}-\left(-16\right)
Since -\frac{527}{5} and \frac{50}{5} have the same denominator, subtract them by subtracting their numerators.
-\frac{577}{5}-\left(-16\right)
Subtract 50 from -527 to get -577.
-\frac{577}{5}+16
The opposite of -16 is 16.
-\frac{577}{5}+\frac{80}{5}
Convert 16 to fraction \frac{80}{5}.
\frac{-577+80}{5}
Since -\frac{577}{5} and \frac{80}{5} have the same denominator, add them by adding their numerators.
-\frac{497}{5}
Add -577 and 80 to get -497.
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}