
The sum of two numbers is 22 and their difference is 99. 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 22. In other words, x plus y equals 22 and can be written as equation A:
x + y = 22
The difference between x and y is 99. In other words, x minus y equals 99 and can be written as equation B:
x - y = 99
Now solve equation B for x to get the revised equation B:
x - y = 99
x = 99 + y
Then substitute x in equation A from the revised equation B and then solve for y:
x + y = 22
99 + y + y = 22
99 + 2y = 22
2y = -77
y = -38.5
Now we know y is -38.5. Which means that we can substitute y for -38.5 in equation A and solve for x:
x + y = 22
x + -38.5 = 22
X = 60.5
Summary: The sum of two numbers is 22 and their difference is 99. What are the two numbers? Answer: 60.5 and -38.5 as proven here:
Sum: 60.5 + -38.5 = 22
Difference: 60.5 - -38.5 = 99
Sum Difference Calculator
Do you want the answer to a similar problem? Enter the sum and difference here to find the two numbers:
The Sum of Two Numbers is 23 and Their Difference is 1
Using what you learned on this page, try to figure out the next problem on our list and then go here to check the answer.
Copyright | Privacy Policy | Disclaimer | Contact