Robbie Jennie Willie and Kylie played a numbers game. Jennie picked a number but did not tell her friends. Robbie and Willie both picked a number as well and Jennie described their numbers like this to Kylie
Robbie picked a number that is nine more than four times Jennie’s number
Willie picked a number that is two less than three times Robbie’s number
Deciding to call her number n Jennie asked Kylie to write an expression that describes Willie’s number
Kylie came up with two expressions that equal Willie’s number
Her first expression was blank ( blank n + blank) -2 simplifying her first expression her second expression was 12n + blank
Willie's number can be described with the expressions:
1. (4n + 9) * 3 - 2 = 12n + 27 - 2 = 12n + 25
2. Substitute Willie's number (2 * (3(4n + 9)) - 2 = 2(12n + 27) - 2 = 24n + 54 - 2 = 24n + 52