Jawab: C
Pembahasan U3 = 15 --> a + 2b = 15
U9 = 39 --> a + 8b = 39 -
---------------
- 6 b = -24
b = 4
Subtitusi nilai b = 4 ke U3 = a + 2b = 15
a + 2 (4) = 15
a = 7
Subtitusi nilai a = 7, dan b = 4 ke U50
Jawab: C
Pembahasan U3 = 15 --> a + 2b = 15
U9 = 39 --> a + 8b = 39 -
---------------
- 6 b = -24
b = 4
Subtitusi nilai b = 4 ke U3 = a + 2b = 15
a + 2 (4) = 15
a = 7
Subtitusi nilai a = 7, dan b = 4 ke U50
Editor: Mariyani Soetrisno
Sumber: Buku.kemdikbud.go.id