4.5-r=30

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Solution for 4.5-r=30 equation: 



4.5-r=30

We move all terms to the left:

4.5-r-(30)=0

We add all the numbers together, and all the variables

-1r-25.5=0

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

-r=25.5

r=25.5/-1

r=-25+0.5/1

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