-4=-6+r

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Solution for -4=-6+r equation: 



-4=-6+r

We move all terms to the left:

-4-(-6+r)=0

We add all the numbers together, and all the variables

-(r-6)-4=0

We get rid of parentheses

-r+6-4=0

We add all the numbers together, and all the variables

-1r+2=0

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

-r=-2

r=-2/-1

r=+2

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