-9=r/3-4

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Solution for -9=r/3-4 equation: 



-9=r/3-4

We move all terms to the left:

-9-(r/3-4)=0

We get rid of parentheses

-r/3+4-9=0

We multiply all the terms by the denominator


-r+4*3-9*3=0

We add all the numbers together, and all the variables

-1r-15=0

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

-r=15

r=15/-1

r=-15

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