-2.5r=-20

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Solution for -2.5r=-20 equation: 



-2.5r=-20

We move all terms to the left:

-2.5r-(-20)=0

We add all the numbers together, and all the variables

-2.5r+20=0

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

-2.5r=-20

r=-20/-2.5

r=+8

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