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If L = (a - b)-c and R =a - (b - c), then L - R =

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If L = (a - b)-c and R =a - (b - c), then L - R = [#permalink] New post 04 Aug 2018, 10:43
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Question Stats:

72% (00:35) correct 27% (00:46) wrong based on 22 sessions
If \(L = (a - b)- c\) and \(R = a - (b - c)\), then \(L - R =\)

(A) 2b

(B) 2c

(C) 0

(D) -2b

(E) -2c
[Reveal] Spoiler: OA

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Re: If L = (a - b)-c and R =a - (b - c), then L - R = [#permalink] New post 04 Aug 2018, 17:11
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Carcass wrote:
If \(L = (a - b)- c\) and \(R = a - (b - c)\), then \(L - R =\)

(A) 2b

(B) 2c

(C) 0

(D) -2b

(E) -2c


Given: L = (a - b)- c
Simplify to get: L = a - b - c

Given: R = a - (b - c)
R = a - b + c

So, L - R = (a - b - c) - (a - b + c)
= a - b - c - a + b - c
= -2c

Answer: E

Cheers,
Brent
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Re: If L = (a - b)-c and R =a - (b - c), then L - R =   [#permalink] 04 Aug 2018, 17:11
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