11-2r=7

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Solution for 11-2r=7 equation: 



11-2r=7

We move all terms to the left:

11-2r-(7)=0

We add all the numbers together, and all the variables

-2r+4=0

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

-2r=-4

r=-4/-2

r=+2

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