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Algebra_4
Chapter 90
Problem 3
Select a different problem
Example:
The sum of two numbers is 48. The difference
of the same two numbers is 24. What are the
the two numbers?
This can be written in shorthand form as
N
1 + N
2 = 48 and
N
1 - N
2 = 24 and
Adding the two equations gives 2N
1 = 72.
So N
1 = 36.
Subtracting the two equations gives 2N
2 = 24.
So N
2 = 12.
