31=7+4(f-2)

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Solution for 31=7+4(f-2) equation: 



31=7+4(f-2)

We move all terms to the left:

31-(7+4(f-2))=0



We calculate terms in parentheses: -(7+4(f-2)), so:

7+4(f-2)

determiningTheFunctionDomain
4(f-2)+7

We multiply parentheses

4f-8+7

We add all the numbers together, and all the variables

4f-1

Back to the equation:

-(4f-1)



We get rid of parentheses

-4f+1+31=0

We add all the numbers together, and all the variables

-4f+32=0

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

-4f=-32

f=-32/-4

f=+8

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