10+r-1-2=4r-8

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Solution for 10+r-1-2=4r-8 equation: 



10+r-1-2=4r-8

We move all terms to the left:

10+r-1-2-(4r-8)=0

We add all the numbers together, and all the variables

r-(4r-8)+7=0

We get rid of parentheses

r-4r+8+7=0

We add all the numbers together, and all the variables

-3r+15=0

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

-3r=-15

r=-15/-3

r=+5

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