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Sub 505 (Easy)|   Algebra|      
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 11 Dec 2015, 09:17
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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5% (low)

Question Stats:

86% (01:15) correct 14% (01:52) wrong based on 184 sessions

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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y?

A. 1/7
B. 3
C. 15
D. 52/7
E. 60/7
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C
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 11 Dec 2015, 10:12
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4x + y = 8
−3x + y = 7
Adding both the equations --> x + 2y = 15

Answer: C
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 12 Dec 2015, 17:14
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4x + y = 8
−3x + y = 7
x + 2y = 15

C. 15
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 12 Dec 2015, 18:20
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Adding both the equations, we get x + 2y = 15
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 25 Apr 2016, 13:21
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4x+y=8 ...equation 1
-3x+y=7 ...equation 2
adding both the equations
x+2y=15
correct answer option C
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 23 May 2017, 06:59
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add 2 equations and you will get x+2y = 8+7=15
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If 4x + y = 8 and y − 3x = 7, then what is the value of x + 2y? 25 May 2024, 04:01
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