Solve for a
a=-4
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7a=2a-20
Use the distributive property to multiply 2 by a-10.
7a-2a=-20
Subtract 2a from both sides.
5a=-20
Combine 7a and -2a to get 5a.
a=\frac{-20}{5}
Divide both sides by 5.
a=-4
Divide -20 by 5 to get -4.
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