The art club is selling handmade jewelry to raise money for new photography equipment. Earrings were sold for $6 a pair and bracelets were sold for $7.50 each. The club sold a total of 21 items and made $139.50.

Here is one way to represent the amount of money the club raised as a system of equations:

Earnings =
Rate
*
Number sold

Earrings
e
=
6
*
n

Bracelets
$\displaystyle{139.50}-{e}\usepackage{cmbright}\Huge\$
=
7.50
*
$\displaystyle{21}-{n}\usepackage{cmbright}\Huge\$

How many of each item did they sell?

	Earnings	=	Rate	*	Number sold
Earrings	e	=	6	*	n
Bracelets	$\displaystyle{139.50}-{e}\usepackage{cmbright}\Huge\$	=	7.50	*	$\displaystyle{21}-{n}\usepackage{cmbright}\Huge\$