292 tickets were sold for a high school basketball game. An adult ticket cost $3.00. A student ticket costs $1.00. Ticket sales were $470.00. How many adult tickets were sold

Answer 1

s + a = 292
1.00 s + 3.00 a = 470

s = 292 - a
1 (292 - a) + 3 a = 470
292 + 2 a = 470
2 a = 470 - 292 etc