Odpowiedź :
Odpowiedź:
2x+3y=8
3x-y=1
2x+3y=8
-y=-3x+1 |·(-1)
2x+3y=8
y=3x-1
2x+3(3x-1)=8
y=3x-1
2x+9x-3=8
y=3x-1
11x=11 |:11
y=3x-1
x=1
y=3x-1
x=1
y=(3·1)-1
x=1
y=3-1
x=1
y=2
2x + 3y = 8
3x - y = 1 / *3
2x + 3y = 8
9x - 3y = 3
+ ----------------
11x = 11 /:11
x = 1
2x + 3y = 8
x = 1
2*1 + 3y = 8
x = 1
2 + 3y = 8
x = 1
3y = 8 - 2
x = 1
3y = 6 /:3
x = 1
y = 2