Odpowiedź:
A) 45+4=49
B) - 16+10=-6
C) 27-0=27
D) 9-5=4
a) 9x + 4 = 9 x 5 + 4 = 45 + 4 = 49
b) 8y + 10 = 8 x (-2) + 10 = (-16) + 10 = (-6)
c) 3(9 - n) = 3(9 - 0) = 27 - 0 = 27
d) 9 - 10p = 9 - 10 x 1/2 = 9 - 5 = 4
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