Odpowiedzi

2010-03-25T20:46:54+01:00
97=2x-5/+5
102=2x/:2
51=x

43=7+9x/-7
36=9x/:9
4=x

17=11-12x/-11
6=-12x/:12
1/2=-x/*(-1)
-1/2=x
1 5 1
2010-03-25T20:47:29+01:00
97 = 2x - 5 |+ 5
112 = 2x |: 2
56 = x

43 = 7 + 9x |- 7
36 = 9x |: 9
4 = x

17 = 11 - 12x |- 11
6 = 12x |: 12
0,5 = x
1 1 1