Odpowiedzi

2010-04-07T16:12:33+02:00
5x -x =19 -3
4x =16 /:4
x =4

3m +5m = 5-2
8m = 3 /:8
m = 3/8
2 5 2
2010-04-07T16:13:01+02:00
A. 5x + 3 = x + 19
5x - x = 19-3
4x = 16/4
x=4

b. 2 + 3m = 5 - 5m
3m+5m = 5-2
8m=3/8
m = 3/8
2 5 2
2010-04-07T16:14:21+02:00
A) 5x+3= x + 19
5x-x=19-3
4x=16/4
x=4

b) 2 + 3m = 5 - 5m
3m+5m=5-2
8m=3/8
( w przybliżeniu to: m=0,375)
2 5 2