7=5.5+r

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Solution for 7=5.5+r equation: 



7=5.5+r

We move all terms to the left:

7-(5.5+r)=0

We add all the numbers together, and all the variables

-(r+5.5)+7=0

We get rid of parentheses

-r-5.5+7=0

We add all the numbers together, and all the variables

-1r+1.5=0

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

-r=-1.5

r=-1.5/-1

r=1+0.5/1

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