The sum of two numbers is 9 and their difference is 5 what are the two numbers?
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Answer:
7 and 2
Step-by-step explanation:
Let the two numbers be x and y.
x > y
x + y = 9 -----> eq 1.
x - y = 5 ------> eq 2.
Add eq 1 and eq 2,
x + y = 9
x - y = 5
_______
2x + 0 = 14
2x = 14
x = 14 / 2
x = 7
Substitute x = 7 in eq 1,
7 + y = 9
y = 9 - 7
y = 2
The two numbers ate 7 and 2.
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