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4(h+21)=3(h-2)
We move all terms to the left:
4(h+21)-(3(h-2))=0
We multiply parentheses
4h-(3(h-2))+84=0
We calculate terms in parentheses: -(3(h-2)), so:We get rid of parentheses
3(h-2)
We multiply parentheses
3h-6
Back to the equation:
-(3h-6)
4h-3h+6+84=0
We add all the numbers together, and all the variables
h+90=0
We move all terms containing h to the left, all other terms to the right
h=-90
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