Odpowiedzi

2010-01-10T19:31:38+01:00
2x+(x-5)=x-7
2+x-5=x-7
3x-5=x-7
2x=-2 |:2
x=-1
2010-01-10T19:32:22+01:00
2x+(x-5)=x-7
2x + x-5 = x-7
3x - x = -7 + 5
2x = -2 / :2
x = -1
Najlepsza Odpowiedź!
2010-01-10T19:33:04+01:00
2x+(x-5)=x-7
2x+x-5=x-7
2x+x-x=-7+5
2x=-2 /:2
x=-1