120=8(1+7x)-12(x+9)

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Solution for 120=8(1+7x)-12(x+9) equation: 



120=8(1+7x)-12(x+9)

We move all terms to the left:

120-(8(1+7x)-12(x+9))=0

We add all the numbers together, and all the variables

-(8(7x+1)-12(x+9))+120=0



We calculate terms in parentheses: -(8(7x+1)-12(x+9)), so:

8(7x+1)-12(x+9)

We multiply parentheses

56x-12x+8-108

We add all the numbers together, and all the variables

44x-100

Back to the equation:

-(44x-100)



We get rid of parentheses

-44x+100+120=0

We add all the numbers together, and all the variables

-44x+220=0

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

-44x=-220

x=-220/-44

x=+5

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