Errol bought a computer, 2 monitors, and a printer for $2,400. He paid $400 less for the printer than the computer. If the computer cost $1,100, how much did one monitor cost, in dollars?
He paid 1100-400=
<gadget id="calculator">1100-400</gadget>
<output>700</output>
700 for the printer.
He paid 2400-1100-700=
<gadget id="calculator">2400-1100-700</gadget>
<output>600</output>
600 dollars for the monitors.
Each monitor costs 600/2=
<gadget id="calculator">600/2</gadget>
<output>300</output>
300 dollars.

<result>300</result>