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-x=7/-1
x=-7
b)-x= 1 i1/8-2 i 3/8
-x=1i1/8-2 i 3/8
-x=9/8-19/8
-x=-10/8/-1
x=10/8
c) -x=-1,4-5,3
-x=-6,7/-1
x=6,7
d) 3x=-15/3
x=-5
2. a) 5x=10-4
5x=6/5
x=6/5
b) 3x=9+5
3x=14/3
x=14/3=4 całe i 2/3
c)-2x=7-4
-2x=4/-2
x=-2
d-4x=13+3
-4x=16/-4
x=-4