" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3x - 4y = 14 | ×5 |⇔15x -20y= 70 -
11y =-22
y =-2
5x - 3y = 16
5x - 3(-2) = 16
5x + 6 = 16
5x= 16 - 6
5x= 10
x= 2
jadi, nilai a . b = 2 . (-2)
= -4