John's new computer cost $1500.  He needs to get a monitor and other peripherals that cost 1/5 that much.  He also wants to upgrade the $300 video card in the base computer with one that costs twice as much.  How much did he spend?
The peripherals cost 1500/5=$
<gadget id="calculator">1500/5</gadget>
<output>300</output>
300.
The video card cost 300*2=$
<gadget id="calculator">300*2</gadget>
<output>600</output>
600.
So it cost 600-300=$
<gadget id="calculator">600-300</gadget>
<output>300</output>
300 more.
That means the total cost was 1500+300+300=$
<gadget id="calculator">1500+300+300</gadget>
<output>2_100</output>
2100.

<result>2_100</result>