2r-7=r-15

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Solution for 2r-7=r-15 equation: 



2r-7=r-15

We move all terms to the left:

2r-7-(r-15)=0

We get rid of parentheses

2r-r+15-7=0

We add all the numbers together, and all the variables

r+8=0

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

r=-8

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