SOLUTION: The sum of the digits of a two-digit number is 9, and their difference is 7. Find the number.

Algebra ->  Test -> SOLUTION: The sum of the digits of a two-digit number is 9, and their difference is 7. Find the number.      Log On


   



Question 1096052: The sum of the digits of a two-digit number is 9, and their difference is 7. Find the number.
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the digits of a two-digit number is 9, and their difference is 7. Find the number.
-----
T + u = 9
T - U = 7
------------------ Add

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
?
system%28t%2Bu=9%2Ct-u=7%29

2t=16
t=8
and
u=1
number,highlight%2881%29

system%28t%2Bu=9%2C-t%2Bu=7%29
2u=18
u=8
and
t=1
number, highlight%2818%29

Either of those will work according to the description.