12=7+5(x-4)

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Solution for 12=7+5(x-4) equation: 



12=7+5(x-4)

We move all terms to the left:

12-(7+5(x-4))=0



We calculate terms in parentheses: -(7+5(x-4)), so:

7+5(x-4)

determiningTheFunctionDomain
5(x-4)+7

We multiply parentheses

5x-20+7

We add all the numbers together, and all the variables

5x-13

Back to the equation:

-(5x-13)



We get rid of parentheses

-5x+13+12=0

We add all the numbers together, and all the variables

-5x+25=0

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

-5x=-25

x=-25/-5

x=+5

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