Solve for x
x=4
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20-2x=12
Multiply 2.5 and 8 to get 20.
-2x=12-20
Subtract 20 from both sides.
-2x=-8
Subtract 20 from 12 to get -8.
x=\frac{-8}{-2}
Divide both sides by -2.
x=4
Divide -8 by -2 to get 4.
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