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Dam najjjjjjjjjjjjjjjj

Dam Najjjjjjjjjjjjjjjj class=

Odpowiedź :

Odpowiedź:

a)3x-4= -9-4=-13

b)-7-3y=-7-12=-19

c)2x+3y-5=-82+6-5=-81

d)1/2a(a-1)=1/2a×9=5×9=45