Two Numbers with a Sum of 6 and a Difference of 1.2

Define variables:
Let x = larger number and y = smaller number
Resulting system of equations:
x + y = Sum
x − y = Difference
Solve the system of equations for x (larger number):
x =  

Sum + Difference/2

Find x by substituting given Sum and Difference into equation for x and simplify:
x =  
x =  
x =  3.6
Solve the system of equations for y (smaller number):
y =  

Sum − Difference/2

Find y by substituting given Sum and Difference into equation for y and simplify:
y =  
y =  
y =  2.4
Therefore, the two Numbers are 3.6 and 2.4
Check Sum of the two Numbers:

	1
	3	.	6
	2	.	4
	6	.	0

3.6 + 2.4 = 6 (trailing zero and decimal point are dropped) ✓
Check Difference between the two Numbers:

	3	.	6
−	2	.	4
	1	.	2

3.6 − 2.4 = 1.2 ✓