x+(x+45)=120

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Solution for x+(x+45)=120 equation: 



x+(x+45)=120

We move all terms to the left:

x+(x+45)-(120)=0

We get rid of parentheses

x+x+45-120=0

We add all the numbers together, and all the variables

2x-75=0

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

2x=75

x=75/2

x=37+1/2

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