Question 1106541
sub for y,


{{{log((x))-log(((160/x)^3))=1}}}

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{{{log(((x^4/160^3)))=1}}}
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{{{log((x))=(1+3*log((160)))/4}}}

{{{log((x))=1.90309}}}

{{{highlight(x=80)}}}


Returning to xy=160, {{{highlight(y=2)}}}.