May 2022 1 9 Report
Równania, jaką liczbą jest liczba oznaczona literą:
a) 15x + 15 = 45
b) - 6k + 6 = - 21
c) 20 - 15p = - 25 - 5
d) ¾m = -¼ + 10
e) - 0,5t + 3/2t = 100 - 0,5t
f) 5² - 1,5z + 30 = - 2½z​

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