30=4x+3(x-4)

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Solution for 30=4x+3(x-4) equation: 



30=4x+3(x-4)

We move all terms to the left:

30-(4x+3(x-4))=0



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

4x+3(x-4)

We multiply parentheses

4x+3x-12

We add all the numbers together, and all the variables

7x-12

Back to the equation:

-(7x-12)



We get rid of parentheses

-7x+12+30=0

We add all the numbers together, and all the variables

-7x+42=0

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

-7x=-42

x=-42/-7

x=+6

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