Rozwiąż układy równań metodą podstawienia. 2x+3y=14 3x-2y=8

14 - 3y x= -------- 2 3 * (14-3y/2) - 2y = 8 42-9y/2 - 2y = 8 /*2 42 - 9y - 4y = 16 42 - 16 = 13y 26 = 13y y = 2 x= 14 - 3*2 / 2 x= 14 - 6 / 2 x= 8/2 = 4 y=2 x=4

2x + 3y =14 3x - 2y = 8 2x=14-3y /2 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=4 y=2

2x+3y=14/-3y 3x-2y=8 2x=14-3y /:2 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 21-6,5y=8/-21 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 y=2 x=4 y=2