" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x-3y = 13 dikali 1 -> 2x-3y= 13
y = -5
substitusi y
x+2y = 4
x+ (-10) = 4
x = 14
2x - 3y =-13 |×1|
2x + 4y = 8
2x - 3y = -13
------------- —
7y = 21
y = 3
x + 2y = 4
x + 2(3) = 4
x + 6 = 4
x = 4 - 6
x = -2
jadi x = -2 dan y = 3