15=3+4(x-1)

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Solution for 15=3+4(x-1) equation: 



15=3+4(x-1)

We move all terms to the left:

15-(3+4(x-1))=0



We calculate terms in parentheses: -(3+4(x-1)), so:

3+4(x-1)

determiningTheFunctionDomain
4(x-1)+3

We multiply parentheses

4x-4+3

We add all the numbers together, and all the variables

4x-1

Back to the equation:

-(4x-1)



We get rid of parentheses

-4x+1+15=0

We add all the numbers together, and all the variables

-4x+16=0

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

-4x=-16

x=-16/-4

x=+4

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