4-2.50r=21.50

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Solution for 4-2.50r=21.50 equation: 



4-2.50r=21.50

We move all terms to the left:

4-2.50r-(21.50)=0

We add all the numbers together, and all the variables

-2.50r+4-(21.5)=0

We add all the numbers together, and all the variables

-2.5r-17.5=0

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

-2.5r=17.5

r=17.5/-2.5

r=-7

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