7r+2=50-r

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Solution for 7r+2=50-r equation: 



7r+2=50-r

We move all terms to the left:

7r+2-(50-r)=0

We add all the numbers together, and all the variables

7r-(-1r+50)+2=0

We get rid of parentheses

7r+1r-50+2=0

We add all the numbers together, and all the variables

8r-48=0

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

8r=48

r=48/8

r=6

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