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3(h+1)=-3
We move all terms to the left:
3(h+1)-(-3)=0
We add all the numbers together, and all the variables
3(h+1)+3=0
We multiply parentheses
3h+3+3=0
We add all the numbers together, and all the variables
3h+6=0
We move all terms containing h to the left, all other terms to the right
3h=-6
h=-6/3
h=-2
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