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13h+3h*13=0
We simplify the equation to the form, which is simple to understand
13h+3h*13=0
We move all terms containing h to the left and all other terms to the right.
+13h+39h=0
We simplify left and right side of the equation.
+52h=0
We divide both sides of the equation by 52 to get h.
h=0
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