Solve for a
a=-2
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10a+2+a=-20
Add a to both sides.
11a+2=-20
Combine 10a and a to get 11a.
11a=-20-2
Subtract 2 from both sides.
11a=-22
Subtract 2 from -20 to get -22.
a=\frac{-22}{11}
Divide both sides by 11.
a=-2
Divide -22 by 11 to get -2.
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