3h+7h=20

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Solution for 3h+7h=20 equation: 



3h+7h=20

We move all terms to the left:

3h+7h-(20)=0

We add all the numbers together, and all the variables

10h-20=0

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

10h=20

h=20/10

h=2

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