Respuesta :
18z + 40x = 468
z = x-3 because they get charge 3 less
x = value repeat customers pay
18(x-3) + 40x = 468
distribute the 18
18x - 54 + 40x = 468
simplify
x=9
New customers = 9
because new get charged three less they get charged 6
Answer:
The equation that models this problem
40x+18(x-3)=468
Michael charges each new subscriber $6
Step-by-step explanation: