Odpowiedzi

2010-03-03T20:47:35+01:00
2(3x + y) = (-10)
2x + 3y = 6

6x+2y= -10
x=3-3/2y


6(3-3/2y)+2y= -10
x=3-3/2y

18-9y+2y= -10
x=3-3/2y

18-7y= -10
x=3-3/2y


-7y=-28
x=3-3/2y

y=4
x=3-3/2*4

y=4
x= -3
2010-03-03T20:51:35+01:00
6x+y= -10
2x+3y=6
y= -10-6x
2x+3*(-10-6x)=6
y=-10-6x
2x-30-18x=6
y=-10-6x
-16x=36
y=-10-6x
x=-2,25
y=-10-6*(-2,25)
x=-2,25
y=-10+13.5
x=-2,25
y=3,5