(r-7)=(2r+8)

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Solution for (r-7)=(2r+8) equation: 



(r-7)=(2r+8)

We move all terms to the left:

(r-7)-((2r+8))=0

We get rid of parentheses

r-((2r+8))-7=0



We calculate terms in parentheses: -((2r+8)), so:

(2r+8)

We get rid of parentheses

2r+8

Back to the equation:

-(2r+8)



We get rid of parentheses

r-2r-8-7=0

We add all the numbers together, and all the variables

-1r-15=0

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

-r=15

r=15/-1

r=-15

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