Question 1153958
n for the nylon price
w for the wool price


{{{system(14n+20w=1744,16n+27w=2221)}}}


Simplification:
{{{system(7n+10w=872,16n+27w=2221)}}}


Question asks for w.
{{{7n=872-10w}}}....
MAYBE better,
{{{system(112n+160w=13952,112n+189w=15547)}}}
{{{E2-E1}}}:
{{{(189-160)w=15547-13952}}}

.

.
{{{highlight(w=55)}}} dollars per yard