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15-11=2(x-4)

We move all terms to the left:

15-11-(2(x-4))=0

We add all the numbers together, and all the variables

-(2(x-4))+4=0

We calculate terms in parentheses: -(2(x-4)), so:We get rid of parentheses

2(x-4)

We multiply parentheses

2x-8

Back to the equation:

-(2x-8)

-2x+8+4=0

We add all the numbers together, and all the variables

-2x+12=0

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

-2x=-12

x=-12/-2

x=+6

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