-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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