-2/5r=40

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Solution for -2/5r=40 equation: 



-2/5r=40

We move all terms to the left:

-2/5r-(40)=0



Domain of the equation: 5r!=0

r!=0/5

r!=0

r∈R



We multiply all the terms by the denominator


-40*5r-2=0

Wy multiply elements

-200r-2=0

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

-200r=2

r=2/-200

r=-1/100

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