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12m+1
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12m+1
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-\left(-3m-5\right)-\left(4-7m-2m\right)
Combine 3m and -6m to get -3m.
-\left(-3m\right)-\left(-5\right)-\left(4-7m-2m\right)
To find the opposite of -3m-5, find the opposite of each term.
3m-\left(-5\right)-\left(4-7m-2m\right)
The opposite of -3m is 3m.
3m+5-\left(4-7m-2m\right)
The opposite of -5 is 5.
3m+5-\left(4-9m\right)
Combine -7m and -2m to get -9m.
3m+5-4-\left(-9m\right)
To find the opposite of 4-9m, find the opposite of each term.
3m+5-4+9m
The opposite of -9m is 9m.
3m+1+9m
Subtract 4 from 5 to get 1.
12m+1
Combine 3m and 9m to get 12m.
-\left(-3m-5\right)-\left(4-7m-2m\right)
Combine 3m and -6m to get -3m.
-\left(-3m\right)-\left(-5\right)-\left(4-7m-2m\right)
To find the opposite of -3m-5, find the opposite of each term.
3m-\left(-5\right)-\left(4-7m-2m\right)
The opposite of -3m is 3m.
3m+5-\left(4-7m-2m\right)
The opposite of -5 is 5.
3m+5-\left(4-9m\right)
Combine -7m and -2m to get -9m.
3m+5-4-\left(-9m\right)
To find the opposite of 4-9m, find the opposite of each term.
3m+5-4+9m
The opposite of -9m is 9m.
3m+1+9m
Subtract 4 from 5 to get 1.
12m+1
Combine 3m and 9m to get 12m.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}