If 3ax+b=c then x equals
a) c+b-3a
b) c-b
over
3a
c) c-b+3a
d) b-c
over
3a
which is the best answer? ?

Acollege is selling tickets for a winter fund-raiser. one day, krissa sold 14 adult tickets and 8 student tickets for a total of $376. the next day, she sold 7 adult tickets and 11 student tickets for a total of $272. krissa wanted to find the price of one adult ticket, a, and the price of one student ticket, s. she wrote and solved the following system of equations.