Question

U3 = 6
u13 = 26
dit u1 dan b???

Answer 1

Beda = (26-6) / (13-3)
= 20/10
= 2

cari a
U3 = a + 2b
6 = a + 2(2)
6 = a + 4
6-4 = a
2 = a

#semogamembantu

Answer 2

Cari beda=eleminasi
U13=26
U3 = 6
----------- _
10b=20
b=20/10=2
pilih slh satu
aku pke
u3=6

u1(a) : u3=a+2b
6=a+(2)2
6=a+4
6-4=a
2 = a

smoga bnar