320=2(x+120)

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Solution for 320=2(x+120) equation: 



320=2(x+120)

We move all terms to the left:

320-(2(x+120))=0



We calculate terms in parentheses: -(2(x+120)), so:

2(x+120)

We multiply parentheses

2x+240

Back to the equation:

-(2x+240)



We get rid of parentheses

-2x-240+320=0

We add all the numbers together, and all the variables

-2x+80=0

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

-2x=-80

x=-80/-2

x=+40

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