Question

am nevoie de ajutor rapid dau coroana​

Answer 1

Răspuns:

x=39/23

y=-6/23

Explicație pas cu pas:

(x+1)/2+(x-y)/3=3

(x-y+5)/2=2y+4

3x+2x-2y=12-3

x-y-4y=8-5

5x-2y=9

x-5y=3/-5

5x-2y=9

-5x+25y=-15

23y=-6

y=-6/23

x=3+5y=3-5×6/23

x=(69-30)/23=39/23

x=39/23