r+4=2r-6

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Solution for r+4=2r-6 equation: 



r+4=2r-6

We move all terms to the left:

r+4-(2r-6)=0

We get rid of parentheses

r-2r+6+4=0

We add all the numbers together, and all the variables

-1r+10=0

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

-r=-10

r=-10/-1

r=+10

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