June 2022 2 5 Report
(6x - 2y) Doprowadź wyrażenia do najprostszej postaci:
5x + 7y - 2x - 9y =
(4a + 5b) + (3a - 2b) =
(6x - 2y) - (5x - 6y) =
-5(3a - 6b) =
4(3x - 5) - 3(4x + 4) =
6x - 2(4x + 2) - (-3x + 7) - 7 =
- (5x - 6y) =

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