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2010-01-28T18:29:27+01:00
25m - 3 = 24m - 4
25m - 24m = -4 + 3
m = -1


17y + 28 = 19y + 27
17y - 19y = 27 - 28
-2y = -1 |: (-2)
y = 1/2

powinno być dobrze.. :)
100 2 100
2010-01-28T18:29:51+01:00
25m-3=24m-4 /+3
25m=24m-1/-24m
1m=-1
m=-1

17y+28=19y+27/-19y
-2y+28=27/-28
-2y=-1/:(-2)
y= 1/2
3 3 3
2010-01-28T18:30:52+01:00
25m-3=24m-4
m=-4+3
m=-1



17y+28=19y+27
-2y=27-28
-2y=-1/;-2
y=½
1 5 1