<PRE><B>Question 25250</B>
Let the right-handed glove be x
Let the left-handed golve be y
x+y=12
y=12-x
Cost of rigth haded glove = $45
left-handed cost =$52
45x+52y=561
Subsitute for y
45x+52(12-x)=561
45x-52x+624=561
-7x=-63
x=9
y=12-9
y=3


Hence about 9 right handed gloves were sold, and about 3 left-handed gloves were sold.
Paul.
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