7r+r=5r+3r

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



7r+r=5r+3r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

8r-(+8r)=0

We get rid of parentheses

8r-8r=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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