18f=(-9f)+72

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Solution for 18f=(-9f)+72 equation: 



18f=(-9f)+72

We move all terms to the left:

18f-((-9f)+72)=0



We calculate terms in parentheses: -((-9f)+72), so:

(-9f)+72

We get rid of parentheses

-9f+72

Back to the equation:

-(-9f+72)



We get rid of parentheses

18f+9f-72=0

We add all the numbers together, and all the variables

27f-72=0

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

27f=72

f=72/27

f=2+2/3

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