-7=r/2+3

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Solution for -7=r/2+3 equation: 



-7=r/2+3

We move all terms to the left:

-7-(r/2+3)=0

We get rid of parentheses

-r/2-3-7=0

We multiply all the terms by the denominator


-r-3*2-7*2=0

We add all the numbers together, and all the variables

-1r-20=0

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

-r=20

r=20/-1

r=-20

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