Question 1178678
{{{system(2a+3b=52,AND,3b+c=41,bc=60)}}}


Taking just E2 and E3,

{{{system(c=41-3b,bc=60)}}}

{{{b(41-3b)=60}}}

{{{-3b^2+41b=60}}}

{{{3b^2-41b=-60}}}

{{{3b^2-41b+60=0}}}

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{{{highlight_green(b=12)}}}{{{not}}}{{{the}}}{{{only}}}{{{real}}}{{{value}}}

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(Method may not have been the intention of the exercise)