{5x=4-2y
{4x+y=3
{6x-3y=9
{x+5y=-9,5
{4x+y=3
{6x-3y=9
{x+5y=-9,5
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Odpowiedzi
{5x=4-2y
{4x+y=3
{5x+2y=4
{4x+y=3 /*(-2)
{5x+2y=4
{-8x-2y=-6
-3x=-2 /: (-3)
X=2/3
Y=3- (4*2/3)
Y=3 -2 i2/3
Y=1/3
{6x-3y=9
{x+5y=-9,5 /* (-6)
{6x-3y=9
{-6x-30y=57
-33y=-48 / (-33)
Y=48/33
X=-9,5- (5*48/33)
X=-9,5-240/33
X=-9,5- 7 i 3/11
X=-16,5-3/11 = -16 i 5/22
{4x+y=3
{5x+2y=4
{4x+y=3 /*(-2)
{5x+2y=4
{-8x-2y=-6
-3x=-2 /: (-3)
X=2/3
Y=3- (4*2/3)
Y=3 -2 i2/3
Y=1/3
{6x-3y=9
{x+5y=-9,5 /* (-6)
{6x-3y=9
{-6x-30y=57
-33y=-48 / (-33)
Y=48/33
X=-9,5- (5*48/33)
X=-9,5-240/33
X=-9,5- 7 i 3/11
X=-16,5-3/11 = -16 i 5/22
