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2h+3+2h=78
We simplify the equation to the form, which is simple to understand
2h+3+2h=78
We move all terms containing h to the left and all other terms to the right.
+2h+2h=+78-3
We simplify left and right side of the equation.
+4h=+75
We divide both sides of the equation by 4 to get h.
h=18.75
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