" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
7x + 2y = -1 ------> x5 ------> 35x + 10y = -5
3x + 5y = 12 ------> x2 ------> 6x + 10y = 24
------------------------------
29 x = - 29
x = -1
subtitusi x
3x + 5y = 12
3(-1) + 5y = 12
-3 + 5y = 12
5y = 12 + 3
5y = 15
y = 3
5x - 3y -------- > 5 (-1) - 3 (3) = -5 - 9 = -14