A student chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose?  Choose one
A) 120	B) 240	C) 360	D) 480	E) 520
Let x be the number he chose, then   2⋅x−138=102   2x=240   x=120   correct answer 120
<result>A</result>
A student chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose?