Odpowiedzi

2009-12-08T21:30:03+01:00
12x-3(3x-5)+6=2(2x-1)+18
12x-9x-15+6=4x-2+18
12x-9x-4x=-2+18+15-6
-x =25 / ;(-1)
x = -25
2009-12-08T21:30:29+01:00
12x-3(3x-5)+6=2(2x-1)+18
12x - 9x + 15 + 6 = 4x - 2 + 18
12x - 9x - 4x = -2 + 18 - 15 - 6
-x = -5
x = 5
2009-12-08T21:32:17+01:00
=12x-9x+15+6=4x-2+18
3x+21=4x+16
3x-4x=16-21
-x=-5/-1
x=5