Odpowiedzi

2009-05-24T17:30:23+02:00
X+2x=-6
3x=-6 /3
x=-3

3x+4=x+5
3x-x=5-4
2x=1 /2
x=1/2
x=0,5
2009-05-24T17:30:54+02:00
3x = -6 :3
x = -2

3x + 4 = x +5
3x - x = 5 - 4
2x = 1 :2
x = 1/2
2009-05-24T17:31:57+02:00
X+2x=-6
3x=-6/:3
x=-2

3x+4=x+5
3x-x=5-4
2x=1/:2
x=1
2009-05-24T17:43:26+02:00
A)x+2x=-6
3x=-6 /:3
x=-2

b)3x+4=x+5
3x-x=5-4
2x=1 /:2
x=0,5