3h+12=30

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Solution for 3h+12=30 equation: 



3h+12=30

We move all terms to the left:

3h+12-(30)=0

We add all the numbers together, and all the variables

3h-18=0

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

3h=18

h=18/3

h=6

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