3x=7+4(x-4)

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Solution for 3x=7+4(x-4) equation: 



3x=7+4(x-4)

We move all terms to the left:

3x-(7+4(x-4))=0



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

7+4(x-4)

determiningTheFunctionDomain
4(x-4)+7

We multiply parentheses

4x-16+7

We add all the numbers together, and all the variables

4x-9

Back to the equation:

-(4x-9)



We get rid of parentheses

3x-4x+9=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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