7-2r=-19

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Solution for 7-2r=-19 equation: 



7-2r=-19

We move all terms to the left:

7-2r-(-19)=0

We add all the numbers together, and all the variables

-2r+26=0

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

-2r=-26

r=-26/-2

r=+13

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