30h=12+3

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Solution for 30h=12+3 equation: 



30h=12+3

We move all terms to the left:

30h-(12+3)=0

We add all the numbers together, and all the variables

30h-15=0

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

30h=15

h=15/30

h=1/2

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