Problem #115 in OG 11 Quant

Stuart@KaplanGMAT: GMAT Instructor; Posts: 3225; Joined: Tue Jan 08, 2008 2:40 pm; Location: Toronto; Thanked: 1710 times; Followed by:614 members; GMAT Score:800

Re: Problem #115 in OG 11 Quant

by Stuart@KaplanGMAT » Wed Sep 10, 2008 10:58 am

rjbrooks wrote:Can someone tell me how the answer went from y/2-6+y to 3y/2-6? Thanks.

y/2 - 6 + y

put the "y"s side by side:

y/2 + y - 6

get a common denominator of "2":

y/2 + 2y/2 - 6

add up the "y" terms:

3y/2 - 6

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

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gmatguy16: Master | Next Rank: 500 Posts; Posts: 124; Joined: Thu Aug 23, 2007 5:11 am; Thanked: 2 times

by gmatguy16 » Wed Sep 10, 2008 2:18 pm

Brooks,
can you please post the question?The above description does not match with the question #115 og 11 ,page 167

Thanks.

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