-2r-5+5r=4r-7

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Solution for -2r-5+5r=4r-7 equation: 



-2r-5+5r=4r-7

We move all terms to the left:

-2r-5+5r-(4r-7)=0

We add all the numbers together, and all the variables

3r-(4r-7)-5=0

We get rid of parentheses

3r-4r+7-5=0

We add all the numbers together, and all the variables

-1r+2=0

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

-r=-2

r=-2/-1

r=+2

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