Która z par liczb (1 3) _, (2 4) , (1,1) spełnia układ równań { x-2y=-1 { 2x+y=3 ?
{x=-1+2y
{2(-1+2y)+y=3
-2+4y+y=3
5y=5
y=1
x=-1+2
x=1
(1,1)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
{x=-1+2y
{2(-1+2y)+y=3
-2+4y+y=3
5y=5
y=1
x=-1+2
x=1
(1,1)