A semi-magic 3x3 square is the square with the sum of numbers in each row, column and one of diagonals equal to the same number. (The diagonal that goes from l

Question

16   ?   ?
  ?   ?  −9
14   5     4

 

ASAP!

 

 

 

(The diagonal that goes from left top corner to bottom right corner does not have the same sum of the numbers.)
Complete each semi-magic square

Answer 1

16 -21 28

-7 39 -9

14 5 4

all rows & columns sum to 23

but not either diagonal