Zad.2 Rozwiąż układy równań metodą podstawiania 2x + 3y =14 3x – 2y = 8

{2x + 3y =14/:2 {3x – 2y = 8 {x+1,5y=7 {3x-2y=8 {x=7-1,5y {3*(7-1,5y)-2y=8 {x=7-1,5y {21-4,5y-2y=8 {x=7-1,5y {-6,5y=-13/:(-6,5) {x=7-1,5y {y=2 {x=7-1,5*2 {y=2 {x=7-3______________{x=4 {y=2________________{y=2

2x + 3y =14|:2 3x – 2y = 8 x+1,5y=7 3x – 2y = 8 x=7-1,5y 3(7-1,5y) – 2y = 8 x=7-1,5y 21-4,5-2y=8 x=7-1,5y 21-6,5y=8 x=7-1,5y -6,5y=-13|:(-6,5) x=7-1,5 y=2 x=7-1,5*2 y=2 x=7-3 y=2 x=4 y=2

2x + 3y =14|:2 3x – 2y = 8 x+1,5y=7 3x – 2y = 8 x=7-1,5y 3(7-1,5y) – 2y = 8 x=7-1,5y 21-4,5-2y=8 x=7-1,5y 21-6,5y=8 x=7-1,5y -6,5y=-13|:(-6,5) x=7-1,5 y=2 x=7-1,5*2 y=2 x=7-3 y=2 x=4 y=2