Odpowiedzi

2010-01-25T22:10:52+01:00
3/4(x-2)-5(x+3)=6x-4
3/4x-6/4-5x-15=6x-4 |*4
3x-6-20x-60=24x-16
-17x-66=24x-16
-50=41x
x=-50/41

1 5 1
2010-01-25T22:21:03+01:00
3/4x-3/2-5x-15=6x-4/*4
3x-6-20x-60=24x-16
-17x-24x=66-16
-41x=50/:(-41)
x=- 50/41
1 5 1
2010-01-25T22:28:35+01:00
3/4x-1,5-5x-15=6x-4
3/4x-5x-6x=-4+1,5+15
-10,25x=12,5
-10 1/4x=12 1/2|:(-10 1/4)
x=50/41
1 5 1