7+8r-4r=5r+5

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Solution for 7+8r-4r=5r+5 equation: 



7+8r-4r=5r+5

We move all terms to the left:

7+8r-4r-(5r+5)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

4r-5r-5+7=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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