Odpowiedzi

2010-03-10T19:27:54+01:00
0,2*(10-5x)=3+2(x-1)
2-10x=3+2x-2
2-10x=1+2x
10x-2x=1-2
8x=-1 /8
x= -1/8

;p;p;p
2010-03-10T19:28:21+01:00
0,2*(10-5x)=3+2(x-1)
2 - x = 3+2x-1
2-x = 2x+2 /+x -2
3x = x
x = 0
1 1 1