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factoring

by vladmire » Sun Feb 08, 2009 6:23 am
So I'm suppose so solve for the equation. I see that I can factor a 5 out to get 5(x-y-z)=10, but how do I get the 5 to the other side divide right?

What is the value of xn – ny – nz?

1.x – y – z = 10
2.n = 5


a.1
b.2
c.both
d.each alone
e. neither
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Source: — Data Sufficiency |
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by cramya » Sun Feb 08, 2009 6:52 am
What is the value of xn – ny – nz?

1.x – y – z = 10
2.n = 5

xn – ny – nz can be simplified as n (x-y-z)

Stmt I gives us just the value (x-y-z)

INSUFF

Stmt II just gives us n

INSUFF

Both statements together:

n (x-y-z) i.e xn – ny – nz can be calculated

(50)

Choose C

Vladimire, hope this helps!

Regards,
CR
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