3r+10=5r-30

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Solution for 3r+10=5r-30 equation: 



3r+10=5r-30

We move all terms to the left:

3r+10-(5r-30)=0

We get rid of parentheses

3r-5r+30+10=0

We add all the numbers together, and all the variables

-2r+40=0

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

-2r=-40

r=-40/-2

r=+20

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