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14a+16b
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14a+16b
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7a+8b-\left(-7a\right)-\left(-8b\right)
To find the opposite of -7a-8b, find the opposite of each term.
7a+8b+7a-\left(-8b\right)
The opposite of -7a is 7a.
7a+8b+7a+8b
The opposite of -8b is 8b.
14a+8b+8b
Combine 7a and 7a to get 14a.
14a+16b
Combine 8b and 8b to get 16b.
7a+8b-\left(-7a\right)-\left(-8b\right)
To find the opposite of -7a-8b, find the opposite of each term.
7a+8b+7a-\left(-8b\right)
The opposite of -7a is 7a.
7a+8b+7a+8b
The opposite of -8b is 8b.
14a+8b+8b
Combine 7a and 7a to get 14a.
14a+16b
Combine 8b and 8b to get 16b.
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Matrix
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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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