题目信息
If 2x + 5y = 8 and 3x = 2y, what is the value of 2x + y ?
A:4
B:
C:
D:
E:
参考答案及共享解析
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已选答案：
正确答案：
D:
Algebra Simultaneous equations
From 3x = 2y, it follows that y =
, so 8 = 2x + 5
= 
. Then x = 
, 2x = 
, and y = 
. Thus 2x + y = 
.
The correct answer is D.
From 3x = 2y, it follows that y =
, so 8 = 2x + 5 = . Then x = , 2x = , and y = . Thus 2x + y = .The correct answer is D.
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