" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x y
__ = __
2 3
x +2,5 = y
3x=2y
x+2,5=y
3x-2y=0
x-y=-2,5 /*(-3)
3x-2y=0
-3x+3y=7,5
___________
-y=7,5
y=-7,5
x=-5
2)
x y
__ - ___ = 0
5 4
x y
__ - __
2 16 = 5,5
4x-5y=0 /*(-2)
8x-y=88
-8+10y=0
8x-y=88
___________
y=88/9
x=110