SOLUTION: Find the value of two numbers if their sum is 12 and their difference is 4

Question 731499: Find the value of two numbers if their sum is 12 and their difference is 4
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

let two numbers be and
if their sum is we have
.....eq. 1
and if their difference is we have
.....eq. 2
solve the system:
.....eq. 1
.....eq. 2
_______________________
.....eq. 1...solve fo
.......substitute in eq. 2
.....eq. 2.....solve fo

now find

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