2r-+5r=3-r+7

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Solution for 2r-+5r=3-r+7 equation: 



2r-+5r=3-r+7

We move all terms to the left:

2r-+5r-(3-r+7)=0

We add all the numbers together, and all the variables

2r+5r-(-1r+10)-=0

We add all the numbers together, and all the variables

7r-(-1r+10)=0

We get rid of parentheses

7r+1r-10=0

We add all the numbers together, and all the variables

8r-10=0

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

8r=10

r=10/8

r=1+1/4

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