12-4r=-4

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Solution for 12-4r=-4 equation:



12-4r=-4
We move all terms to the left:
12-4r-(-4)=0
We add all the numbers together, and all the variables
-4r+16=0
We move all terms containing r to the left, all other terms to the right
-4r=-16
r=-16/-4
r=+4

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