15h=21h+42

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Solution for 15h=21h+42 equation: 



15h=21h+42

We move all terms to the left:

15h-(21h+42)=0

We get rid of parentheses

15h-21h-42=0

We add all the numbers together, and all the variables

-6h-42=0

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

-6h=42

h=42/-6

h=-7

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