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15. Rezolvați sistemele: (3(2x+2y+5)+2(2x-4y-7)=-13 (2(3x+y-2)-3(x+4y-3)=-19 C 2(x-y-4)-3(2x-y+5)=-18 3(x-y+6)-2(3x-2y+4)=-15 2(2x-3y+5)-3(3x-3y+4)=-11' ; b) 3(x+2y-1)-2(2x+4y-5)=-1' (3(2x+y+5)-2(4x+3y+7)=3 d) 3(2x+3y-4)-2(2x+4y-9)=12


15 Rezolvați Sistemele 32x2y522x4y713 23xy23x4y319 C 2xy432xy518 3xy623x2y415 22x3y533x3y411 B 3x2y122x4y51 32xy524x3y73 D 32x3y422x4y912 class=