May 2022 1 12 Report
Opuść nawiasy i uprość wyrażenia:

(3x - 2y) + (-5x - y) =

- (3a + 6) - 7 =

(x + y - 1) - (7x - 2y + 9) =

- (9a - 4b) - (a + 3b) - (-0,5a - 2b) =


W. z. 1 oblicz wartość liczbową dla x = 4 i y = 7

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