Answer :
Hello,
AP = arithmetic progression
Step-by-step explanation:
b + a = 18
18 + 3a = 486 ⇔ 3a = 468 ⇔ a = 156
b = 18 - a = 18 - 156 = -138
Hello,
AP = arithmetic progression
Step-by-step explanation:
b + a = 18
18 + 3a = 486 ⇔ 3a = 468 ⇔ a = 156
b = 18 - a = 18 - 156 = -138