Mathematics

# For 2 consecutive integers, the result of adding the smaller integer and triple the larger integer is 79. What are the 2 integers? A. 18, 19 B. 19, 20 C. 20, 21 D. 26, 27 E. 39, 40

$n+3(n+1)=79\\\\n+3n+3=79\\\\4n=79-3\\\\4n=76\ \ \ \ /:4\\\\n=19\\\\n+1=20\\\\Answer:B.\ 19\ and\ 20.$