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# Is x=0? 1. xy=x 2. x+y=y

Author Message
CEO
Joined: 21 Jan 2007
Posts: 2734

Kudos [?]: 1051 [0], given: 4

Location: New York City
Is x=0? 1. xy=x 2. x+y=y [#permalink]

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13 Nov 2007, 14:36
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Is x=0?

1. xy=x
2. x+y=y

Kudos [?]: 1051 [0], given: 4

SVP
Joined: 05 Jul 2006
Posts: 1750

Kudos [?]: 432 [0], given: 49

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13 Nov 2007, 14:50
Is x=0?

1. xy=x
2. x+y=y

from one

y = 1, or x = 0

from 2

x = 0

Kudos [?]: 432 [0], given: 49

Director
Joined: 26 Feb 2006
Posts: 900

Kudos [?]: 157 [0], given: 0

Re: Easy Number Prop x = 0? [#permalink]

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17 Nov 2007, 22:24
bmwhype2 wrote:
Is x=0?

1. xy=x
2. x+y=y

1, x and y could be 1.

2, x + y = y
x = y - y
x = 0

B.

Kudos [?]: 157 [0], given: 0

Re: Easy Number Prop x = 0?   [#permalink] 17 Nov 2007, 22:24
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