Question 410881
Let {{{t}}} = number of t-shirts you must sell
{{{1530 + 3t = 20t}}}
This equation says
(money spent to make {{{t}}} t-shirts) = (money made on {{{t}}} t-shirts)
{{{17t = 1530}}}
{{{t = 90}}}
You must sell 90 t-shirts to break even