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9(11-8y)+2(y-6)=80

 Apr 17, 2020
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\(9(11-8y)+2(y-6)=80\)

Expand 

\(99-72y+2y-12=80\)

Rearrange and group like terms 

\(7-70y=0\)

\(-70y=-7\)

\(y=7/70=0.1\)

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 Apr 17, 2020

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