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If x is an integer, what is the value of x? (1) 2(x + 5)

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Manager
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If x is an integer, what is the value of x? (1) 2(x + 5) [#permalink]

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New post 10 Jul 2009, 12:13
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If x is an integer, what is the value of x?
(1) –2(x + 5) < -1
(2) – 3x > 9

please explain
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Kudos [?]: 102 [0], given: 10

Senior Manager
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Joined: 04 Jun 2008
Posts: 286

Kudos [?]: 161 [0], given: 15

Re: inequalities [#permalink]

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New post 10 Jul 2009, 12:24
C

When u multiply or divide both sides with a negative number in inequalities, the inequality sign reverses.

Stmt 1:
x+5 > 1/2
x > -4.5

stmt 2
x < -3

since x is integer, the only value combining both is x = -4

Kudos [?]: 161 [0], given: 15

Manager
Manager
avatar
Joined: 16 Apr 2009
Posts: 230

Kudos [?]: 102 [0], given: 10

Schools: Ross
Re: inequalities [#permalink]

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New post 10 Jul 2009, 12:33
Quote:
stmt 2
x < -3

since x is integer, the only value combining both is x = -4


Don't we need to flip the sign when we move the -ve sign?
Sorry for my ignorance.
_________________

Keep trying no matter how hard it seems, it will get easier.

Kudos [?]: 102 [0], given: 10

Senior Manager
Senior Manager
avatar
Joined: 04 Jun 2008
Posts: 286

Kudos [?]: 161 [0], given: 15

Re: inequalities [#permalink]

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New post 10 Jul 2009, 12:34
vannu wrote:
Quote:
stmt 2
x < -3

since x is integer, the only value combining both is x = -4


Don't we need to flip the sign when we move the -ve sign?
Sorry for my ignorance.


yes, didnt i do that?

-3x > 9

x < -3

Kudos [?]: 161 [0], given: 15

Re: inequalities   [#permalink] 10 Jul 2009, 12:34
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If x is an integer, what is the value of x? (1) 2(x + 5)

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