6r-13=r+7

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Solution for 6r-13=r+7 equation: 



6r-13=r+7

We move all terms to the left:

6r-13-(r+7)=0

We get rid of parentheses

6r-r-7-13=0

We add all the numbers together, and all the variables

5r-20=0

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

5r=20

r=20/5

r=4

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