1-8r=-7-4r

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



1-8r=-7-4r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-8r+4r+7+1=0

We add all the numbers together, and all the variables

-4r+8=0

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

-4r=-8

r=-8/-4

r=+2

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