(2x-15)+x=345

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Solution for (2x-15)+x=345 equation: 



(2x-15)+x=345

We move all terms to the left:

(2x-15)+x-(345)=0

We add all the numbers together, and all the variables

x+(2x-15)-345=0

We get rid of parentheses

x+2x-15-345=0

We add all the numbers together, and all the variables

3x-360=0

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

3x=360

x=360/3

x=120

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