2r-7=7

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Solution for 2r-7=7 equation: 



2r-7=7

We move all terms to the left:

2r-7-(7)=0

We add all the numbers together, and all the variables

2r-14=0

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

2r=14

r=14/2

r=7

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