If 5x + y = 6 and 2y − 4x = 7, then what is the value of x + 3y?  Answers:	A) 1/7	B) 13	C) 15	D) 52/7	E) 60/7
5x + y = 6   −4x + 2y = 7   Adding both the equations --&gt; x + 3y = 13   Answer: 13
<result>B</result>
If 5x + y = 6 and 2y − 4x = 7, then what is the value of x + 3y?