-9h-21=-39

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Solution for -9h-21=-39 equation: 



-9h-21=-39

We move all terms to the left:

-9h-21-(-39)=0

We add all the numbers together, and all the variables

-9h+18=0

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

-9h=-18

h=-18/-9

h=+2

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