7-r=r=3

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Solution for 7-r=r=3 equation: 



7-r=r=3

We move all terms to the left:

7-r-(r)=0

We add all the numbers together, and all the variables

-2r+7=0

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

-2r=-7

r=-7/-2

r=3+1/2

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