Odpowiedzi

2010-01-26T18:11:11+01:00
4(2x+3)-2(4y-1)=30
(5x+1)/3-(y-3)/4=3

8x+12-(-8y)-2=30
(5x+1)-(y-3)/12=34

8x+8y=30-12+2
60x+12-y-3=36

8x+8y=20
60x-y=36-12+3

8x+8y=20
60x-y=27

8x+8y=20
480x-8y=216
___________
488x=236
x=0,45

3,6+8y=20
8y=20-3,6
8y=16,4
y=2,05
1 5 1