Odpowiedzi

2009-12-23T14:31:09+01:00
4x + 2x + 1 = 13
6x = 12
x = 2
y = 5

x = 5y - 3
x = 3 - y
5y - 3 = 3 - y
5y + y = 3 + 3
6y = 6
y = 1
x = 2
1 5 1
Najlepsza Odpowiedź!
2009-12-23T14:33:12+01:00
Y=2x+1
4x+y=13

y=2x+1
4x+2x+1=13

y=2x+1
6x=12/6

y=2x+1
x=2

y=2*2+1
x=2

y=5
x=2


5y-x=3
x=3-y

5y-(3-y)=3
x=3-y

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

4y=6/4
x=3-y

y=1 i1/2
x=1 i 1/2