Odpowiedzi

2010-04-13T17:47:55+02:00
X+17=30
x=13
3t-11=2t+2
niewiem...
2 1 2
2010-04-13T17:50:57+02:00
X+17=30 |-17
x=13

3t-11=2t+2 |-2t
t-11=2 |+11
t=13

y-45=54 |+45
y=99

5+2u=9-3u |+3u
5+5u=9 |-5
5u=9 |/5
u=1,8

2z=2-6
2z= -4 |/2
z= -2

5v-3=4v+2 |+3
5v=4v+5 |-4v
v=5
1 2 1