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4r/4=-8/4
We move all terms to the left:
4r/4-(-8/4)=0
We add all the numbers together, and all the variables
4r/4-(-2)=0
We add all the numbers together, and all the variables
4r/4+2=0
We multiply all the terms by the denominator
4r+2*4=0
We add all the numbers together, and all the variables
4r+8=0
We move all terms containing r to the left, all other terms to the right
4r=-8
r=-8/4
r=-2
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