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If 5x + 32 = 4 - 2x

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If 5x + 32 = 4 - 2x [#permalink] New post 10 Sep 2017, 10:31
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Question Stats:

85% (00:20) correct 14% (00:53) wrong based on 136 sessions
Founder
Founder
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Joined: 18 Apr 2015
Posts: 13909
GRE 1: Q160 V160
Followers: 315

Kudos [?]: 3680 [0], given: 12935

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Re: If 5x + 32 = 4 - 2x [#permalink] New post 10 Sep 2017, 10:33
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Re: If 5x + 32 = 4 - 2x [#permalink] New post 15 May 2019, 14:13
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Carcass wrote:
If 5x + 32 = 4 - 2x, what is the value of x ?

A. -4

B. -3

C. 4

D. 7

E. 12


GIVEN: 5x + 32 = 4 - 2x
Add 2x to both sides to get: 7x + 32 = 4
Subtract 32 from both sides to get: 7x = -28
Divide both sides by 7 to get: x = -28/7 = -4

Answer: A

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Brent
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1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 3907
Followers: 164

Kudos [?]: 4771 [1] , given: 70

Re: If 5x + 32 = 4 - 2x [#permalink] New post 15 May 2019, 14:15
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Expert's post
Carcass wrote:
If 5x + 32 = 4 - 2x, what is the value of x ?

A. -4

B. -3

C. 4

D. 7

E. 12


Another approach is to test the answer choices

A. -4
Replace x with -4 to get: 5(-4) + 32 = 4 - 2(-4)
Simplify: (-20) + 32 = 4 - (-8)
Simplify: 12 = 12
PERFECT!!

Answer: A

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
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Re: If 5x + 32 = 4 - 2x   [#permalink] 15 May 2019, 14:15
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