40=40-2.5r/0.5

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Solution for 40=40-2.5r/0.5 equation: 



40=40-2.5r/0.5

We move all terms to the left:

40-(40-2.5r/0.5)=0

We add all the numbers together, and all the variables

-(-2.5r/0.5+40)+40=0

We get rid of parentheses

2.5r/0.5-40+40=0

We multiply all the terms by the denominator


2.5r-40*0.5+40*0.5=0

We add all the numbers together, and all the variables

2.5r=0

r=0/2.5

r=0

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