-9+4r=-4(3-r)

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Solution for -9+4r=-4(3-r) equation: 



-9+4r=-4(3-r)

We move all terms to the left:

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

We add all the numbers together, and all the variables

4r-(-4(-1r+3))-9=0



We calculate terms in parentheses: -(-4(-1r+3)), so:

-4(-1r+3)

We multiply parentheses

4r-12

Back to the equation:

-(4r-12)



We get rid of parentheses

4r-4r+12-9=0

We add all the numbers together, and all the variables

3!=0

There is no solution for this equation

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