Solve for a
a=-2
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2-2a-a=8
Subtract a from both sides.
2-3a=8
Combine -2a and -a to get -3a.
-3a=8-2
Subtract 2 from both sides.
-3a=6
Subtract 2 from 8 to get 6.
a=\frac{6}{-3}
Divide both sides by -3.
a=-2
Divide 6 by -3 to get -2.
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