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-13-\left(-14\right)+42-35-\left(-8+15\right)
Subtract 23 from 9 to get -14.
-13+14+42-35-\left(-8+15\right)
The opposite of -14 is 14.
1+42-35-\left(-8+15\right)
Add -13 and 14 to get 1.
43-35-\left(-8+15\right)
Add 1 and 42 to get 43.
8-\left(-8+15\right)
Subtract 35 from 43 to get 8.
8-7
Add -8 and 15 to get 7.
1
Subtract 7 from 8 to get 1.
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}