June 2022 1 4 Report
Uprość wyrażenia (każdy przykład 1 pkt.):
a) 5a + (3b + 2b + 4)
b) 9x + (-6x + 2y + 5)
c) (-5a – 6b + 1) + (-a + 7 – 9)
d) 5a - (3a + 1)
e) - 4y - (-7y - 3z + 1)
f S (-2x2 + 3x - y2 – 5) - (-5 + 2x - y2 – 3x2)
potrzebuje na teraz daje naj​

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