Odpowiedzi

2010-03-18T18:44:26+01:00
5z=3z+8
2z=8 /2
z=4

2w+3=4w-5
-2w=-8 /-2
w=4

4u+2=u-7
3u=-9 /3
u=-3
2010-03-18T18:45:12+01:00
1. 5z=3z+8
5z-3z=8
2z=8/:2z
x=4
2. 2w-4w=-5-3
-2w=-8/: -2w
w= 4
3. 4u-u=-7-2
3u= - 9/: 3u
u= -3
2010-03-18T18:45:18+01:00
5z = 3z+8
2z=8
1z=4



2w+3=4w-5
2w+8=4w
8=2w
1w=4



4u+2=u-7
3u+2=-7
3u+9