" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
2/3 a - 1/4 b = 57/6 a + 3/2 b - 1 = 0
7/6 a + 3/2 b = 1
Substitusi b dengan mengalikan atas dengan angka 3/2 dan bawah dengan 1/4.
2/3 a - 1/4 b = 5
7/6 a + 3/2 b = 1
6/6 a - 3/8 b = 5
7/24 a - 3/8 b = 1
______________-
17/24 a - 0 = 4
a = 4 x 24/17
a = 5,6
maka b dapat dicari dengan.
7/6 a + 3/2 b = 1
7/6 (5,6) + 3/2 b = 1
6,5 + 3/2 b = 1
3/2 b = 1 - 6,5
3/2 b = -5,5
b = -3,7
Maka
a + 2b = 5,6 + 2(-3,7) = 5,6 + (-7,4)
a + 2b = -1,8
Dibukatkan menjadi -2 (b)