Find two numbers if their sum is 7.2 and their difference is 2.7.

Question

I don't know how to do this. It would be best if you answer this before saturday.

Answer 1

The 2 numbers are m and n.

m + n = 7.2

m - n = 2.7

Add the 2 equations and get

2m = 7.2 + 2.7 = 9.9

m = 9.9/2 = ?

Once you find m, plug its value into ether equation and get n.