Solve for a
a=1
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8-2a+2=7+a
Use the distributive property to multiply -2 by a-1.
10-2a=7+a
Add 8 and 2 to get 10.
10-2a-a=7
Subtract a from both sides.
10-3a=7
Combine -2a and -a to get -3a.
-3a=7-10
Subtract 10 from both sides.
-3a=-3
Subtract 10 from 7 to get -3.
a=\frac{-3}{-3}
Divide both sides by -3.
a=1
Divide -3 by -3 to get 1.
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