9r-8=10+7r

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Solution for 9r-8=10+7r equation: 



9r-8=10+7r

We move all terms to the left:

9r-8-(10+7r)=0

We add all the numbers together, and all the variables

9r-(7r+10)-8=0

We get rid of parentheses

9r-7r-10-8=0

We add all the numbers together, and all the variables

2r-18=0

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

2r=18

r=18/2

r=9

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