" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5x + y = 7 | x2
3x-2y=12
10x+2y=14
—————— +
13x=26
x=2
5x+y=7
5(2)+y=7
y=7-10
y=-3
4x + 3y=4(2)+3(-3)
=8-9
=-1