-r/10=-2

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Solution for -r/10=-2 equation: 



-r/10=-2

We move all terms to the left:

-r/10-(-2)=0

We add all the numbers together, and all the variables

-r/10+2=0

We multiply all the terms by the denominator


-r+2*10=0

We add all the numbers together, and all the variables

-1r+20=0

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

-r=-20

r=-20/-1

r=+20

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