September 2018 2 23 Report

9.

c) 8-3x-2[4-(x+5)]=3(x+1)-1

d)1-2x-3[2x-(-5+x)]=x+4

10.

b) 7/9 + x/2 =3/2 - x/18 ( 7/9 jest w ułamku i reszta )

11.

c) -0,4+2x-2,1=0,3x-0,8


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