-6(r-7)=4(r-12)

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Solution for -6(r-7)=4(r-12) equation: 



-6(r-7)=4(r-12)

We move all terms to the left:

-6(r-7)-(4(r-12))=0

We multiply parentheses

-6r-(4(r-12))+42=0



We calculate terms in parentheses: -(4(r-12)), so:

4(r-12)

We multiply parentheses

4r-48

Back to the equation:

-(4r-48)



We get rid of parentheses

-6r-4r+48+42=0

We add all the numbers together, and all the variables

-10r+90=0

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

-10r=-90

r=-90/-10

r=+9

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