-7r+8-r=-9r+10

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



-7r+8-r=-9r+10

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-8r+9r-10+8=0

We add all the numbers together, and all the variables

r-2=0

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

r=2

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