Układ równań...Proszę o pilne rozwiązanie!!! Daje naj za dobrą odpowiedź.. 3(x+y)-2(x-y)= -1 x-2(x+y)= 3

 3(x+y)-2(x-y)= -1 x-2(x+y)= 3     3x + 3y - 2x + 2y = -1 x - 2x - 2y = 3     x + 5y = -1 -x - 2y = 3     x = -1 - 5y -(-1-5y) - 2y = 3     x = -1 -5y 1 + 5y - 2y = 3        x = -1 -5y 3y = 2     /:3     x = -1-5y y = 2/3      x = -1 -5*2/3    = -1 - 10/3  = -3/3 - 10/3 = -13/3 y = 2/3     x =-13/3 y = 2/3 Spr. L =  x + 5y =  -13/3 + 5*2/3 = -13/3 + 10/3 = -3/3 = -1 P = -1        

3(x+y)-2(x-y)= -1 x-2(x+y)= 3   3x+3y-2x+2y=-1 x-2x-2y=3   x+5y=-1 -x-2y=3   3y=2 y=2/3   x=-1-5y x=-1-5*2/3 x=-1-3i1/3 x=-4i1/3   x=-4i1/3 y=2/3