zad1.Rozwiąż układ równań dowolnym sposobem.
a){ 2x-y = 6
{ 2x-3y= -2
b) { 1/3x - 1/2y =2
{ 2x-3y = 12
c) { 4x-y= 3
{ 2x-0,5y= 6
Z góry dziękuję:D
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a) [2x-y=6
[2x-3y=-2
[y=2x-6
[2x-3*2x-6=-2
[y=2x-6
[2x-6x+6=-2
[-4x=-8
[x=2
[y=2*2-6
[x=2
[y=2
[x=2