3r+10=4r-40

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Solution for 3r+10=4r-40 equation: 



3r+10=4r-40

We move all terms to the left:

3r+10-(4r-40)=0

We get rid of parentheses

3r-4r+40+10=0

We add all the numbers together, and all the variables

-1r+50=0

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

-r=-50

r=-50/-1

r=+50

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