Solve for x
x=18
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30=2x-6
Combine x and x to get 2x.
2x-6=30
Swap sides so that all variable terms are on the left hand side.
2x=30+6
Add 6 to both sides.
2x=36
Add 30 and 6 to get 36.
x=\frac{36}{2}
Divide both sides by 2.
x=18
Divide 36 by 2 to get 18.
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