Question 1178136
Assumed, one item for each person


t, Taco price
b, Burrito price


{{{system(2b+5t=19.5,5b+2t=22.5)}}}



ADD:   {{{7b+7t=42}}}
or
{{{b+t=6}}}




Possible System to Use:
{{{system(2b+5t=19.5,2b+2t=12)}}}


E1-E2:
{{{3t=7.5}}}
{{{highlight(t=2.5)}}}
{{{AND}}}
{{{highlight(b=3.5)}}}