Solve for h
h=5
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2h+90=100
Combine h and h to get 2h.
2h=100-90
Subtract 90 from both sides.
2h=10
Subtract 90 from 100 to get 10.
h=\frac{10}{2}
Divide both sides by 2.
h=5
Divide 10 by 2 to get 5.
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