# MATH PUZZLE ABOUT SEQUENCE [closed]

In the array of numbers below, each number above the bottom row is equal to three times the number immediately below it. What is the value of x+y?

        27      x     81     -108
9      -18    27     -36
3      -6     y      -12
1      -2     3      -4


## closed as off-topic by Bass, Excited Raichu, gabbo1092, Glorfindel, JonMark PerryNov 30 '18 at 14:29

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is off-topic as it appears to be a mathematics problem, as opposed to a mathematical puzzle. For more info, see "Are math-textbook-style problems on topic?" on meta." – Bass, Excited Raichu, gabbo1092, Glorfindel, JonMark Perry
If this question can be reworded to fit the rules in the help center, please edit the question.

• This seems extremely simple and not really a puzzle... – gabbo1092 Nov 30 '18 at 13:55
• Too simple for a puzzle, took me about 20 sec to calculate the answer – Eugene Anisiutkin Nov 30 '18 at 13:58