Abigail and Ben went to the local pizza shop to pick up lunch. Ben ordered 3 slices of pizza and 1 soda for $7.80. Abigail ordered 1 slice of pizza and 1 soda for $3.60.

One way to represent this situation is given in the system of equations below, where p represents the price of pizza, and s represents the price of a soda.

$\displaystyle{3}{p}+{s}={7.80}\usepackage{cmbright}\Huge\$

$\displaystyle{p}+{s}={3.60}\usepackage{cmbright}\Huge\$

Use the elimination method to figure out how much a slice of pizza costs.