21=-9h-5h

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Solution for 21=-9h-5h equation: 



21=-9h-5h

We move all terms to the left:

21-(-9h-5h)=0

We add all the numbers together, and all the variables

-(-14h)+21=0

We get rid of parentheses

14h+21=0

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

14h=-21

h=-21/14

h=-1+1/2

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