-3=r-1/2

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Solution for -3=r-1/2 equation: 



-3=r-1/2

We move all terms to the left:

-3-(r-1/2)=0

We add all the numbers together, and all the variables

-(+r-1/2)-3=0

We get rid of parentheses

-r-3+1/2=0

We multiply all the terms by the denominator


-r*2+1-3*2=0

We add all the numbers together, and all the variables

-r*2-5=0

Wy multiply elements

-2r-5=0

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

-2r=5

r=5/-2

r=-2+1/2

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