" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
ii. 7/6x + 3/2y=1
samakan penyebutnya:
i. 8x - 3y = 60 |x3| 24x - 9y = 180
ii. 14x + 18y = 12 |:2| => 7x + 9y = 6
------------------------+
31x =186 => x = 6
substitusi x = 6 ke 7x + 9y = 6, diperoleh y = -4
karena x=a dan y=b, maka a=6 dan b=-4
a + 2b
6 + 2(-4)
-2
Jawaban B.