SOLUTION: the sum of two numbers is 81 the differance of the same two numbers is 9. What are the two numbers?
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Question 748694: the sum of two numbers is 81 the differance of the same two numbers is 9. What are the two numbers?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
x + y = 81
x - y = 9
Add
2x = 90
x = 45
Substitute x = 45
in first equation
45 + y = 81
y = 81 - 45
y = 36
{45,36}
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