2h+21=8h-9

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Solution for 2h+21=8h-9 equation:



2h+21=8h-9
We move all terms to the left:
2h+21-(8h-9)=0
We get rid of parentheses
2h-8h+9+21=0
We add all the numbers together, and all the variables
-6h+30=0
We move all terms containing h to the left, all other terms to the right
-6h=-30
h=-30/-6
h=+5

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