45+(2x)+(x+15)=180

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Solution for 45+(2x)+(x+15)=180 equation: 



45+(2x)+(x+15)=180

We move all terms to the left:

45+(2x)+(x+15)-(180)=0

We add all the numbers together, and all the variables

2x+(x+15)-135=0

We get rid of parentheses

2x+x+15-135=0

We add all the numbers together, and all the variables

3x-120=0

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

3x=120

x=120/3

x=40

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