Răspunsuri

2014-05-01T17:34:10+03:00
1. 4x+ay=6
-4+2a=6
2a=10
a=5
2.x+3y=0;3x+4y=-5
x=-3y;-9y+4y=-5
x=-3y;-5y=-5
x=-3;y=1