Evaluate
23.1
Factor
\frac{3 \cdot 7 \cdot 11}{2 \cdot 5} = 23\frac{1}{10} = 23.1
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20.9+5.7-15.3-\left(-11.8\right)
The opposite of -5.7 is 5.7.
26.6-15.3-\left(-11.8\right)
Add 20.9 and 5.7 to get 26.6.
11.3-\left(-11.8\right)
Subtract 15.3 from 26.6 to get 11.3.
11.3+11.8
The opposite of -11.8 is 11.8.
23.1
Add 11.3 and 11.8 to get 23.1.
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
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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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