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2x+2x+4=4x+4
b) -z+5(2y+2)
-z+10y+10
c) 2a-3(x-2a)
2a-3x+6a
8a-3x
d) 4a-2-2(2a-3)
4a-2-4a+6
-2+6
e) (4-3x+3a)*(-4a)
-16a+12ax-12ax
-16a
b)-z+10y+10
c)2a+6a-3x
d)4a-4a+6-2
e)...
mam nadzieje że dobrze:D