Question

Itu pertanyaannya...

U7 = 103
U10 = 88
U15 = ?

Answer 1

U7 = 103 → a+6b = 103
U10 = 88 → a+9b = 88
_____________ -
-3b = 15
b = 15/-3
b = -5
b= -5 disubstitusikan ke persamaan :
a+9b = 88
a+9.(-5) = 88
a-45 = 88
a = 88+44
a = 132

jadi,
U15
= a+14b
= 132+14.(-5)
= 132-70
= 62