" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5x-y=14 x3
15x+10y =-10
15x-3y=42 -
13y =-52
y=-52÷13
y=-4
3x+2y=-2
3x+2.-4=-2
3×=-2+8
x=6÷3
×=2
2x+4y=2.2+4.-4
=4+-16
=-12