7x + y = 19 , and x + 3y = 1. Find the value of 2x + y  Answers
A) 20 B) 18 C) 11 D) 5 E) 50

Rationale: add these two equations 8 x + 4 y = 20 divide by 2 ( to get 2 x + y ) answer will be d . 10
Answer: D