Question

The seniors sold 180 tickets to their play . tickets cost $2 for students and 3 for adults they took in $420 how many student and adult tickets were sold

Answer 1

S+a=180
2s+3a=420
S=180-a
2(180-a) +3a=420
360-2a+3a=420
A=420-360
A=60
S=180-60
S=120
Hope this helps