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3x=11-5
3x=6/3
x=2
B-2x+3=-4x-1
-2x+4x=-1-3
2x=-4/2
x=-2
C 6(x-1)=8
6x-6=8
6x=8+6
6x=14/6
x=14/6(ułamek zwykły)
x=7/3 czyli2i 1/3
D 1/2x +2/3=5/6
3/6x+4/6=5/6
3/6x=5/6-4/6
3/6=1/6:3/6
x=1/6*6/3
x=1/3
E 3x+6=2x-2
3x-2x=-2-6
x=-8
F 5/15(6x-3)=-3/15(10x+15)
5/15*6x-3*5/15=-3/15*10x+15*-3/15
30/15x-15/15=-30/15x-45/15
30/15x+30/15x=-45/15+15/15
2x+2x=-3+1
4x=-2:4
x=-1/2
PR0SZĘ O NAJ. Dzięki;)