-137=3+10r

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Solution for -137=3+10r equation: 



-137=3+10r

We move all terms to the left:

-137-(3+10r)=0

We add all the numbers together, and all the variables

-(10r+3)-137=0

We get rid of parentheses

-10r-3-137=0

We add all the numbers together, and all the variables

-10r-140=0

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

-10r=140

r=140/-10

r=-14

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