7-3r=r-4(3+r)

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Solution for 7-3r=r-4(3+r) equation: 



7-3r=r-4(3+r)

We move all terms to the left:

7-3r-(r-4(3+r))=0

We add all the numbers together, and all the variables

-3r-(r-4(r+3))+7=0



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

r-4(r+3)

We multiply parentheses

r-4r-12

We add all the numbers together, and all the variables

-3r-12

Back to the equation:

-(-3r-12)



We get rid of parentheses

-3r+3r+12+7=0

We add all the numbers together, and all the variables

19!=0

There is no solution for this equation

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