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12c
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12c
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4\left(c+3c+c\right)-2\left(3c-2c+c+2c\right)
Combine 2c and -c to get c.
4\left(4c+c\right)-2\left(3c-2c+c+2c\right)
Combine c and 3c to get 4c.
4\times 5c-2\left(3c-2c+c+2c\right)
Combine 4c and c to get 5c.
20c-2\left(3c-2c+c+2c\right)
Multiply 4 and 5 to get 20.
20c-2\left(c+c+2c\right)
Combine 3c and -2c to get c.
20c-2\left(2c+2c\right)
Combine c and c to get 2c.
20c-2\times 4c
Combine 2c and 2c to get 4c.
20c-8c
Multiply 2 and 4 to get 8.
12c
Combine 20c and -8c to get 12c.
4\left(c+3c+c\right)-2\left(3c-2c+c+2c\right)
Combine 2c and -c to get c.
4\left(4c+c\right)-2\left(3c-2c+c+2c\right)
Combine c and 3c to get 4c.
4\times 5c-2\left(3c-2c+c+2c\right)
Combine 4c and c to get 5c.
20c-2\left(3c-2c+c+2c\right)
Multiply 4 and 5 to get 20.
20c-2\left(c+c+2c\right)
Combine 3c and -2c to get c.
20c-2\left(2c+2c\right)
Combine c and c to get 2c.
20c-2\times 4c
Combine 2c and 2c to get 4c.
20c-8c
Multiply 2 and 4 to get 8.
12c
Combine 20c and -8c to get 12c.
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}