A student chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose?  Pick:
A) 60
B) 90
C) 220
D) 170
E) 120
Let x be the number he chose, then   2*x−138=102   2x=240   x=120   Anser is 120.
<result>E</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?