If 2x + y = 4 and x + 2y = 5, then (x + y)/3 =
Choose the correct choice from the following answers.
A) 1	B) 4/3	C) 17/5	D) 18/5	E) 4
We have two equations:   2x + y = 4   x + 2y = 5   Notice that something nice happens when we ADD them. We get:   3x + 3y = 9   Divide both sides by 3 to get:x + y = 3   So, (x + y)/3 =3/3= 
<gadget id="calculator">3/3</gadget>
<output>1</output>
1   1nswer: 1
<result>A</result>
If 2x + y = 4 and x + 2y = 5, then (x + y)/3 =