Two numbers add together to make 16 and have a difference of 9

2n+=16
n difference of nine.
Well the word difference means in mathematical terms, The result of subtracting one number from another. How much one number differs from another.

Example: The difference between 8 and 3 is 5.
I think the answer to your question is : 4&5
The reason why becuase 4+5 is 9 which are the 2 closest numbers to make nine and 2n+9=11+4+5=20 minus 2 two times and you will still get 16.
I hope this helped you! :)

2(10 - 13x) + 9x = -34x + 6020 - 26x + 9x = -34x + distributive property-17x = -34x + subtraction property (subtracted 20 from both sides)17x = addition property (added 34x to both sides)x = 40/ division property (divided both sides by 17)