1/2(r+4)(r=12)

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Solution for 1/2(r+4)(r=12) equation: 



1/2(r+4)(r=12)

We move all terms to the left:

1/2(r+4)(r-(12))=0



Domain of the equation: 2(r+4)(r-12)!=0

r∈R



We multiply parentheses ..

1/2(+r^2-12r+4r-48)=0

We multiply all the terms by the denominator


1!=0

There is no solution for this equation

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