7r+2=4r-10

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Solution for 7r+2=4r-10 equation: 



7r+2=4r-10

We move all terms to the left:

7r+2-(4r-10)=0

We get rid of parentheses

7r-4r+10+2=0

We add all the numbers together, and all the variables

3r+12=0

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

3r=-12

r=-12/3

r=-4

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