x oznacza "razy", tak?
(45:6)-2x15= 7,5 - 2 x 15 = 7,5 - 30 = -22,5
=7,5-30=-22,5
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x oznacza "razy", tak?
(45:6)-2x15= 7,5 - 2 x 15 = 7,5 - 30 = -22,5
=7,5-30=-22,5