zad.1
a) {4x+y=13 b) {2x+3y=1 c) {2x-y=1
{3x-2y=-4 {x-y=-2 {x+2y=8
zad.2
a) {2x+y=5 b) {x-y=3 c) {2x+3y=5
{3x-y=5 {2x+3y=11 {x+y=1
zad.3
a) {2x+y=9 b) {2x+3y=1 c) {4x+8=1-5y
{x-y=3 {1/2x-y=2 {3-2x=3y+6
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP :(
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
{2x + y = - 4
{x - y = -2 (*-2)
{2x + y = - 4
{-2x+2y=4
+__________
2x+y-2x+2y=-4+4 (x Ci się skrócą)
3y=0
y=3
{2x + y = - 4
{x - y = -2 (*-2)
{2x + y = - 4-podstawiasz do tego za y=3
2x+3=-4
2x=-4-3
2x=-7/2
x=-3.5
y=3