2+7r=10r-4

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



2+7r=10r-4

We move all terms to the left:

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

We get rid of parentheses

7r-10r+4+2=0

We add all the numbers together, and all the variables

-3r+6=0

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

-3r=-6

r=-6/-3

r=+2

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