Solve for h
h=10
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2h+30=50
Combine h and h to get 2h.
2h=50-30
Subtract 30 from both sides.
2h=20
Subtract 30 from 50 to get 20.
h=\frac{20}{2}
Divide both sides by 2.
h=10
Divide 20 by 2 to get 10.
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