" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
7x+9y=5 / * 6
-42x - 49y = - 56
42x + 54y= 30
0 + 5y = - 26
5y=-26 /:5
y= - 5,5
6x + 7 * (-5,5) = 8
6x + (-38,5) = 8
6x = 8 - (-38,5)
6x = 8 + 38,5
6x = 46,5 /:6
x=7,75
y=-5,5
x=7,75