The Sum of Two Numbers is 14 and Their Difference is 23

The sum of two numbers is 14 and their difference is 23. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 14. In other words, x plus y equals 14 and can be written as equation A:

x + y = 14

The difference between x and y is 23. In other words, x minus y equals 23 and can be written as equation B:

x - y = 23

Now solve equation B for x to get the revised equation B:

x - y = 23
x = 23 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 14
23 + y + y = 14
23 + 2y = 14
2y = -9
y = -4.5

Now we know y is -4.5. Which means that we can substitute y for -4.5 in equation A and solve for x:

x + y = 14
x + -4.5 = 14
X = 18.5

Summary: The sum of two numbers is 14 and their difference is 23. What are the two numbers? Answer: 18.5 and -4.5 as proven here:

Sum: 18.5 + -4.5 = 14
Difference: 18.5 - -4.5 = 23

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The Sum of Two Numbers is 14 and Their Difference is 24
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