Resolva a inequação,sendo U=Q:
13 - 1 < 9x + 1
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13 - 1 < 9x + 1
-9x < 1 + 1 - 13
- 9x < - 11(-1)
9x > 11
x > 11
9
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c) 10x - 1 ≤ 4 ( x + 1 ) ==> 10x - 1 ≤ 4z + 4 ==> 10x-4x ≤ 4+ 1 => 6x≤ 5 ==>x≤ 5/6
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d) 7x - 28 > 6x - 23 ==> 7x-6x > - 23+28 ==> x > 5
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e) 6x - 3 ( 4 - 2x ) > 0 => 6x - 12 + 6x > 0 => 12x > 12 => x > 1
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f) 2 ( x - 3 ) + 3 ( x - 1 ) ≤ 36
2x - 6+3x - 3 ≤ 36 ==> 5x ≤ 36+9 ==> 5x ≤ 45 ==> x ≤ 9
pbantonio:
obgd
c) 10x - 1 ≤ 4 ( x + 1 )
d) 7x - 28 > 6x - 23
e) 6x - 3 ( 4 - 2x ) > 0
f) 2 ( x - 3 ) + 3 ( x - 1 ) ≤ 36
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X <11/9 ou X<1.222222......
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