39 and 51
The way to figure this out is to divide 90 by two
45 now subtract six and add six to 45 to achieve a difference of 12
45 - 6 = 39
45 + 6 = 51
Using algebra, we can say that the first number is x, and the second number is y.
x+y=90
x-y=12
Adding these two equations gives us:
2x=102
x=51
Plugging this into the first equation,
51+y=90
y=39.
So, the two numbers are 51 and 39.
