Solve for x
x=-21
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-x+3+6=30
Combine 2x and -3x to get -x.
-x+9=30
Add 3 and 6 to get 9.
-x=30-9
Subtract 9 from both sides.
-x=21
Subtract 9 from 30 to get 21.
x=-21
Multiply both sides by -1.
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