X: # of pairs of socks; y: # of blouses
Then $2.99x+$12.99y=$43.92.
Putting it in simpler terms
Presumably we're being asked for the line which passes through (3,5) and (-1,5) which is simply
<span>Let the number of nickles be x
Let the number of pennies be y
Value Value
Type Number of of
of of EACH ALL
coin coins coin coins
-------------------------------------------
nickles x $0.05 $0.05x
pennies y $0.01 $0.01y
-------------------------------------------
TOTALS 56 ----- $1.52
The first equation comes from the second column.</span>
