A student chose a number, multiplied it by 3, then subtracted 220 from the result and got 110. What was the number he chose?
Pick one:
A) 90  B) 100  C) 110  D) 120  E) 130

Rationale: "let x be the number he chose , then 3 ⋅ x − 220 = 110 3 x = 330 x = 110 correct answer c"
Answer: C