2,5a - a - 4a + 6,5a - 3,5a = 1,5a - 4a + 3a = 0,5a
Odpowiedź:
2,5a - a = 1,5a
1,5a - 4a = -2,5a
-2,5a + 6,5a = 4a
4a - 3,5a = 0,5a
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2,5a - a - 4a + 6,5a - 3,5a = 1,5a - 4a + 3a = 0,5a
Odpowiedź:
2,5a - a = 1,5a
1,5a - 4a = -2,5a
-2,5a + 6,5a = 4a
4a - 3,5a = 0,5a