2.5r=15+r

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Solution for 2.5r=15+r equation: 



2.5r=15+r

We move all terms to the left:

2.5r-(15+r)=0

We add all the numbers together, and all the variables

2.5r-(r+15)=0

We get rid of parentheses

2.5r-r-15=0

We add all the numbers together, and all the variables

1.5r-15=0

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

1.5r=15

r=15/1.5

r=10

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