8-2r=-7+3r

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Solution for 8-2r=-7+3r equation: 



8-2r=-7+3r

We move all terms to the left:

8-2r-(-7+3r)=0

We add all the numbers together, and all the variables

-2r-(3r-7)+8=0

We get rid of parentheses

-2r-3r+7+8=0

We add all the numbers together, and all the variables

-5r+15=0

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

-5r=-15

r=-15/-5

r=+3

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