-1=1+7r=5

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



-1=1+7r=5

We move all terms to the left:

-1-(1+7r)=0

We add all the numbers together, and all the variables

-(7r+1)-1=0

We get rid of parentheses

-7r-1-1=0

We add all the numbers together, and all the variables

-7r-2=0

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

-7r=2

r=2/-7

r=-2/7

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