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2010-02-22T17:20:30+01:00
{3u + 2v = 2 |x(-2)
{5u + 4v = 6
-6u - 4v = -4
5u + 4v = 6
-1u = 2
u = -2
2v = 2 - 3u
2v = 2 - 3(-2)
2v = 2 + 6
v = 4

{3s + 5t = -6
{ 1,5s - 2t= -3 |x(-2)
3s + 5t = -6
-3s + 6t = 6
11t = 0
t = 0
5t = -6 - 3s
5t = -6
t = 1,2

{5= 3x - y
{5x-2y = 7

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