Ответ:
2х - 7 7x - 2 1 - x
———— + ———— ≤ 3 - ——— = 2x - 7 + 2 ( 7x - 2 )
6 3 2
≤ 18 - 3 ( 1 - x ) = 2x - 7 + 14x - 4 ≤ 18 - 3 + 3x = 16x -
11 ≤ 15 + 3x= 16x - 3x ≤ 15 + 11 = 13x ≤ 26 =
= x ≤ 2 або x є ( - ∞ ; 2 ] .
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Ответ:
2х - 7 7x - 2 1 - x
———— + ———— ≤ 3 - ——— = 2x - 7 + 2 ( 7x - 2 )
6 3 2
≤ 18 - 3 ( 1 - x ) = 2x - 7 + 14x - 4 ≤ 18 - 3 + 3x = 16x -
11 ≤ 15 + 3x= 16x - 3x ≤ 15 + 11 = 13x ≤ 26 =
= x ≤ 2 або x є ( - ∞ ; 2 ] .