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7x+11z+3
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7x+11z+3
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9x+4z+2-2x-\left(-7z\right)-\left(-1\right)
To find the opposite of 2x-7z-1, find the opposite of each term.
9x+4z+2-2x+7z-\left(-1\right)
The opposite of -7z is 7z.
9x+4z+2-2x+7z+1
The opposite of -1 is 1.
7x+4z+2+7z+1
Combine 9x and -2x to get 7x.
7x+11z+2+1
Combine 4z and 7z to get 11z.
7x+11z+3
Add 2 and 1 to get 3.
9x+4z+2-2x-\left(-7z\right)-\left(-1\right)
To find the opposite of 2x-7z-1, find the opposite of each term.
9x+4z+2-2x+7z-\left(-1\right)
The opposite of -7z is 7z.
9x+4z+2-2x+7z+1
The opposite of -1 is 1.
7x+4z+2+7z+1
Combine 9x and -2x to get 7x.
7x+11z+2+1
Combine 4z and 7z to get 11z.
7x+11z+3
Add 2 and 1 to get 3.
Examples
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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
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Limits
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