1-r=7-2r

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Solution for 1-r=7-2r equation: 



1-r=7-2r

We move all terms to the left:

1-r-(7-2r)=0

We add all the numbers together, and all the variables

-r-(-2r+7)+1=0

We add all the numbers together, and all the variables

-1r-(-2r+7)+1=0

We get rid of parentheses

-1r+2r-7+1=0

We add all the numbers together, and all the variables

r-6=0

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

r=6

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