1. |-5-7|+|11-6|-|25-9| jest równa ? odpowiedzi a)3 b) -13 c) 9 d) 1 2. |x-3/4|=7/8=
to jest ważne potrzebuje to na TERAZ
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1.
|-5 - 7| + |11 - 6| - |25 - 9| = |-12| + |5| - |16| = 12 + 5 - 16 = 1
2. |x - 3/4| = 7/8
x - 3/4 = 7/8 lub x - 3/4 = -7/8
x = 7/8 + 3/4 x = -7/8 + 3/4
x = 7/8 + 6/8 x = -7/8 + 6/8
x = 13/8 x = -1/8
x = 1 i 5/8