Question

The sum of two numbers is 90. their difference is 12. what are the numbers?

Answer 1

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.

Answer 2

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