4-8r+1=-5-7r

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Solution for 4-8r+1=-5-7r equation: 



4-8r+1=-5-7r

We move all terms to the left:

4-8r+1-(-5-7r)=0

We add all the numbers together, and all the variables

-8r-(-7r-5)+4+1=0

We add all the numbers together, and all the variables

-8r-(-7r-5)+5=0

We get rid of parentheses

-8r+7r+5+5=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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