-2+r/4=-1

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Solution for -2+r/4=-1 equation: 



-2+r/4=-1

We move all terms to the left:

-2+r/4-(-1)=0

We add all the numbers together, and all the variables

r/4-1=0

We multiply all the terms by the denominator


r-1*4=0

We add all the numbers together, and all the variables

r-4=0

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

r=4

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