7.5=3.7+r

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Solution for 7.5=3.7+r equation: 



7.5=3.7+r

We move all terms to the left:

7.5-(3.7+r)=0

We add all the numbers together, and all the variables

-(r+3.7)+7.5=0

We get rid of parentheses

-r-3.7+7.5=0

We add all the numbers together, and all the variables

-1r+3.8=0

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

-r=-3.8

r=-3.8/-1

r=3+0.8/1

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