The Sum of Two Numbers is 60 and Their Difference is 4

The sum of two numbers is 60 and their difference is 4. 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 60. In other words, x plus y equals 60 and can be written as equation A:

x + y = 60

The difference between x and y is 4. In other words, x minus y equals 4 and can be written as equation B:

x - y = 4

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

x - y = 4
x = 4 + y

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

x + y = 60
4 + y + y = 60
4 + 2y = 60
2y = 56
y = 28

Now we know y is 28. Which means that we can substitute y for 28 in equation A and solve for x:

x + y = 60
x + 28 = 60
X = 32

Summary: The sum of two numbers is 60 and their difference is 4. What are the two numbers? Answer: 32 and 28 as proven here:

Sum: 32 + 28 = 60
Difference: 32 - 28 = 4

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The Sum of Two Numbers is 60 and Their Difference is 5
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