8r+7=-10+10r-3

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Solution for 8r+7=-10+10r-3 equation: 



8r+7=-10+10r-3

We move all terms to the left:

8r+7-(-10+10r-3)=0

We add all the numbers together, and all the variables

8r-(10r-13)+7=0

We get rid of parentheses

8r-10r+13+7=0

We add all the numbers together, and all the variables

-2r+20=0

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

-2r=-20

r=-20/-2

r=+10

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