21=5(2h-3)

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Solution for 21=5(2h-3) equation: 



21=5(2h-3)

We move all terms to the left:

21-(5(2h-3))=0



We calculate terms in parentheses: -(5(2h-3)), so:

5(2h-3)

We multiply parentheses

10h-15

Back to the equation:

-(10h-15)



We get rid of parentheses

-10h+15+21=0

We add all the numbers together, and all the variables

-10h+36=0

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

-10h=-36

h=-36/-10

h=3+3/5

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