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 the correct choice from the following answers: A) 120 B) 335 C) 784 D) 217 E) 210
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?