3(h+7)=12

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Solution for 3(h+7)=12 equation: 



3(h+7)=12

We move all terms to the left:

3(h+7)-(12)=0

We multiply parentheses

3h+21-12=0

We add all the numbers together, and all the variables

3h+9=0

We move all terms containing h to the left, all other terms to the right

3h=-9

h=-9/3

h=-3

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