Oblicz:
a)
{2x+y=2
{3x-2y=3
b)
{x+3y=3
{-2x+5y=5
c)
{5x+3y=2
{x-y=2
a) {2x+y=2 /*2
{4x+2y=4
+ --------------
7x = 7
x = 1
2*1+y =2
y = 0
b) {x+3y=3 /*2
{2x+6y=6
+-----------------
11y=11
y = 1
x+3*1=3
x = 0
c) {5x+3y=2
{x-y=2 /*3
{3x-3y=6
8x=8
x=1
1-y=2
y =-1
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a) {2x+y=2 /*2
{3x-2y=3
{4x+2y=4
{3x-2y=3
+ --------------
7x = 7
x = 1
2*1+y =2
y = 0
b) {x+3y=3 /*2
{-2x+5y=5
{2x+6y=6
{-2x+5y=5
+-----------------
11y=11
y = 1
x+3*1=3
x = 0
c) {5x+3y=2
{x-y=2 /*3
{5x+3y=2
{3x-3y=6
+-----------------
8x=8
x=1
1-y=2
y =-1