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Решить 6 примеров!
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а) (a - 2) + (a - 3) - (-2a + 7)
б) 2 • (a - 3) - (5a +6)
в) -3 • (2x - 9) + (-5x + 1)
г) (x - 3) + (x - 5) - (7 - 3x)
д) -2 • (m - 3) - (3m - 5)
е) 4 • (2a - 1) + (7 - 5a)
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