Solve for z
z=-1
Solve for x
x\in \mathrm{R}
z=-1
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z=7-8x+x-8+7x
Combine -5x and -3x to get -8x.
z=7-7x-8+7x
Combine -8x and x to get -7x.
z=-1-7x+7x
Subtract 8 from 7 to get -1.
z=-1
Combine -7x and 7x to get 0.
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Limits
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