2r=8.4

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Solution for 2r=8.4 equation: 



2r=8.4

We move all terms to the left:

2r-(8.4)=0

We add all the numbers together, and all the variables

2r-8.4=0

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

2r=8.4

r=8.4/2

r=4+0.4/2

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