Evaluate
-56
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-56
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\frac{4\times 4}{\frac{3}{7}-1}\times 2
Divide 4 by \frac{\frac{3}{7}-1}{4} by multiplying 4 by the reciprocal of \frac{\frac{3}{7}-1}{4}.
\frac{16}{\frac{3}{7}-1}\times 2
Multiply 4 and 4 to get 16.
\frac{16}{\frac{3}{7}-\frac{7}{7}}\times 2
Convert 1 to fraction \frac{7}{7}.
\frac{16}{\frac{3-7}{7}}\times 2
Since \frac{3}{7} and \frac{7}{7} have the same denominator, subtract them by subtracting their numerators.
\frac{16}{-\frac{4}{7}}\times 2
Subtract 7 from 3 to get -4.
16\left(-\frac{7}{4}\right)\times 2
Divide 16 by -\frac{4}{7} by multiplying 16 by the reciprocal of -\frac{4}{7}.
\frac{16\left(-7\right)}{4}\times 2
Express 16\left(-\frac{7}{4}\right) as a single fraction.
\frac{-112}{4}\times 2
Multiply 16 and -7 to get -112.
-28\times 2
Divide -112 by 4 to get -28.
-56
Multiply -28 and 2 to get -56.
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}