43 − 3 = + 3 − 3
43 − 3 =
= 55 = + (6 − 1)
6
55 = + (5) substitusikan nilai a
55 = 43 − 3 + 5
55 − 43 = 43 − 3 + 5 − 43
55 − 43 = −3 + 5
12 = 2
12 2
=
2 2
6 =
Kemudian mencari nilai a
43 − 3(6) =
43 − 18 =
25 =
Sehingga,
= 25 + (1 − 1)6
1
= 25 + (0)6
1
= 25 + 0
1
= 25
1
2
∴ , ℎ ℎ 25