" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x/4-y/5=4 |*20
y=6-2x
5x-4y=80
5x-4(6-2x)=80
5x-24+8x=80
5x+8x=80+24
13x=104
x=8
2*8+y=6
16+y=6
y=6-16
y=-10