Solve for x
x=3
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12x-7-3x=20
Subtract 3x from both sides.
9x-7=20
Combine 12x and -3x to get 9x.
9x=20+7
Add 7 to both sides.
9x=27
Add 20 and 7 to get 27.
x=\frac{27}{9}
Divide both sides by 9.
x=3
Divide 27 by 9 to get 3.
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