2x-15=x+21=180

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Solution for 2x-15=x+21=180 equation: 



2x-15=x+21=180

We move all terms to the left:

2x-15-(x+21)=0

We get rid of parentheses

2x-x-21-15=0

We add all the numbers together, and all the variables

x-36=0

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

x=36

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