r-5-8r=10-2r

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Solution for r-5-8r=10-2r equation: 



r-5-8r=10-2r

We move all terms to the left:

r-5-8r-(10-2r)=0

We add all the numbers together, and all the variables

r-8r-(-2r+10)-5=0

We add all the numbers together, and all the variables

-7r-(-2r+10)-5=0

We get rid of parentheses

-7r+2r-10-5=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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