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2010-01-14T17:57:42+01:00
1){3u+2v=2/x(-2)
{5u+4v=6
{-6u-4v=-4
{5u+4v=6
+
----------------
-u=2
{u=-2
{2v=2-3u
{u=-2
{2v=2-(-6)
{u=-2
{2v=8
u=-2
v=4
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2010-01-14T18:18:01+01:00
{3u+2v=2/*(-2)
{5u+4v=6

{-6u-4v=-4
{5u+4v=6

-u=2
{u=-2
{v=4


{x-3y=5/*(-3)
{y+3x= -5

{-3x+9y=-15
{y+3x=-5

10y= -20
{y=-2
{x=-1


{5p-2r=21/*5
{3p+5r=-6/*2

{25p-10r=105
{6p+10r=-12

31p=93
{p=3
{r=-3



{2x-3y=10/*(-5)
{5x+5y=0/*2

{-10x+15y=-50
{10x+10y=0

25y= -50
{y=-2
{x=2



{4x+5y=12,3/*2
{3x-2y= -4/*5

{8x+10y=24,6
{15x-10y=-20

23x=4.6
{x=0.2
{y=2.3


{3x-0,2y=35/*50
{2,5x-5y=5/*(-2)

{150x-10y=1750
{-5x+10y=-10

145x=1740
x=12
y=5