Odpowiedzi

2010-04-15T14:44:12+02:00
{x+y=105
{(x-8)+1,2y=100

x=105-y
105-y-8+1.2y=100

0,2y=3
y=15
x=90
2010-04-15T14:50:33+02:00
X+y=105
(x-8)+1,2y=100

x=105-y
((105-y-8))+1,2y=100
-y+1,2y =100-105 +8
0,2y=3 /:0,2

y=15



x+y=105
x+15=105

x= 90