2r-4=8

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Solution for 2r-4=8 equation:



2r-4=8
We move all terms to the left:
2r-4-(8)=0
We add all the numbers together, and all the variables
2r-12=0
We move all terms containing r to the left, all other terms to the right
2r=12
r=12/2
r=6

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