Solve for x
x=10
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\frac{81}{3}=7+2x
Divide both sides by 3.
27=7+2x
Divide 81 by 3 to get 27.
7+2x=27
Swap sides so that all variable terms are on the left hand side.
2x=27-7
Subtract 7 from both sides.
2x=20
Subtract 7 from 27 to get 20.
x=\frac{20}{2}
Divide both sides by 2.
x=10
Divide 20 by 2 to get 10.
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