5r=13-7r

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Solution for 5r=13-7r equation: 



5r=13-7r

We move all terms to the left:

5r-(13-7r)=0

We add all the numbers together, and all the variables

5r-(-7r+13)=0

We get rid of parentheses

5r+7r-13=0

We add all the numbers together, and all the variables

12r-13=0

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

12r=13

r=13/12

r=1+1/12

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