4=-2(h-9)

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Solution for 4=-2(h-9) equation: 



4=-2(h-9)

We move all terms to the left:

4-(-2(h-9))=0



We calculate terms in parentheses: -(-2(h-9)), so:

-2(h-9)

We multiply parentheses

-2h+18

Back to the equation:

-(-2h+18)



We get rid of parentheses

2h-18+4=0

We add all the numbers together, and all the variables

2h-14=0

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

2h=14

h=14/2

h=7

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