A student chose a number, multiplied it by 3, then subtracted 220 from the result and got 110. What was the number he chose?
Answers:
A) 90 B) 100 C) 110 D) 120 E) 130
Let x be the number he chose, then   3⋅x−220=110   3x=330   x=110   correct answer 110
<result>C</result>
A student chose a number, multiplied it by 3, then subtracted 220 from the result and got 110. What was the number he chose?