Evaluate
\frac{47}{3}\approx 15.666666667
Factor
\frac{47}{3} = 15\frac{2}{3} = 15.666666666666666
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\frac{16-7\left(-4\right)+3}{-4+7}
Calculate -4 to the power of 2 and get 16.
\frac{16-\left(-28\right)+3}{-4+7}
Multiply 7 and -4 to get -28.
\frac{16+28+3}{-4+7}
The opposite of -28 is 28.
\frac{44+3}{-4+7}
Add 16 and 28 to get 44.
\frac{47}{-4+7}
Add 44 and 3 to get 47.
\frac{47}{3}
Add -4 and 7 to get 3.
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}