Question

a tour director collected $258 for 13 tour package tour package A cost $18 and tour package B cost $22 how many of each tour package were sold

Answer 1

a + b = 13.....a = 13 - b
18a + 22b = 258

18(13 - b) + 22b = 258
234 - 18b + 22b = 258
-18b + 22b = 258 - 234
4b = 24
b = 24/4
b = 6.........so there were 6 tour packages from package B sold

a + b = 13
a + 6 = 13
a = 13 - 6
a = 7.....and there were 7 tour packages from package A sold