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3x+2x-x=-6
4x=-6|:4
x=-1½
3/6x + 2/6x + 6=x
5/6x + 6= x /-5/6x
6= 1/6x / *6 ( * to mnożenie)
x=36
1/2 x + 1/3x - x = -6 /*6 (wspolny mianownik)
3x+ 2x -6x = -36
-x = -36
x= 36
Na pewno dobrze