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x-y=y-x
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20 Aug 2021, 09:50
20 Aug 2021, 09:50
Expert Reply
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Question Stats:
90% (00:23) correct
10% (00:13) wrong based on 10 sessions
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\(x-y=y-x\)
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x-y |
0 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Retired Moderator
Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
x-y=y-x
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20 Aug 2021, 13:17
20 Aug 2021, 13:17
1
since Quantity B is zero itself, use algebra for 2x=2y, x=y
answer is C
answer is C
Carcass wrote:
\(x-y=y-x\)
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x-y |
0 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: x-y=y-x
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24 Aug 2021, 07:35
24 Aug 2021, 07:35
1
Carcass wrote:
\(x-y=y-x\)
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
x-y |
0 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Given: x - y = y - x
Add y to both sides of the equation to get: x = 2y - x
Add x to both sides of the equation to get: 2x = 2y
Divide both sides of the equation by 2 to get: x = y
If x = y, then x - y = 0, in which case the two quantities are equal.
Answer: C
