1/2(r-12)=42

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Solution for 1/2(r-12)=42 equation: 



1/2(r-12)=42

We move all terms to the left:

1/2(r-12)-(42)=0



Domain of the equation: 2(r-12)!=0

r∈R



We multiply all the terms by the denominator


-42*2(r-12)+1=0

Wy multiply elements

-84r(r+1=0

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