The Sum of Two Numbers is 85 and Their Difference is 3




The sum of two numbers is 85 and their difference is 3. 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 85. In other words, x plus y equals 85 and can be written as equation A:

x + y = 85

The difference between x and y is 3. In other words, x minus y equals 3 and can be written as equation B:

x - y = 3

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

x - y = 3
x = 3 + y


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

x + y = 85
3 + y + y = 85
3 + 2y = 85
2y = 82
y = 41


Now we know y is 41. Which means that we can substitute y for 41 in equation A and solve for x:

x + y = 85
x + 41 = 85
X = 44


Summary: The sum of two numbers is 85 and their difference is 3. What are the two numbers? Answer: 44 and 41 as proven here:

Sum: 44 + 41 = 85
Difference: 44 - 41 = 3



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The Sum of Two Numbers is 85 and Their Difference is 4
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