r/10-1=-2

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Solution for r/10-1=-2 equation: 



r/10-1=-2

We move all terms to the left:

r/10-1-(-2)=0

We add all the numbers together, and all the variables

r/10+1=0

We multiply all the terms by the denominator


r+1*10=0

We add all the numbers together, and all the variables

r+10=0

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

r=-10

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