A student chose a number, multiplied it by 2, then subtracted 180 from the result and got 104. What was the number he chose?
Choose the correct answer:
A) 90 B) 100 C) 120 D) 142 E) 200
Solution:   Let x be the number he chose, then   2*x*180=104   2x=284   x=142   correct answer 142
<result>D</result>
A student chose a number, multiplied it by 2, then subtracted 180 from the result and got 104. What was the number he chose?