Solve for x
x=1
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-21x+12+3x=-6
Add 3x to both sides.
-18x+12=-6
Combine -21x and 3x to get -18x.
-18x=-6-12
Subtract 12 from both sides.
-18x=-18
Subtract 12 from -6 to get -18.
x=\frac{-18}{-18}
Divide both sides by -18.
x=1
Divide -18 by -18 to get 1.
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