-r/2+4=12

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Solution for -r/2+4=12 equation: 



-r/2+4=12

We move all terms to the left:

-r/2+4-(12)=0

We add all the numbers together, and all the variables

-r/2-8=0

We multiply all the terms by the denominator


-r-8*2=0

We add all the numbers together, and all the variables

-1r-16=0

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

-r=16

r=16/-1

r=-16

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