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-56
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-56
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120-8x-8\left(22-x\right)
Use the distributive property to multiply 8 by 15-x.
120-8x-176+8x
Use the distributive property to multiply -8 by 22-x.
-56-8x+8x
Subtract 176 from 120 to get -56.
-56
Combine -8x and 8x to get 0.
8\left(15-x-\left(22-x\right)\right)
Factor out 8.
-56
Simplify.
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