find two numbers whose sum is 28 and whose difference is 20.

Question

sammixboo · Answer

24 + 4 = 28

24 - 4 = 20

:)

sammixboo · Answer

I can't really explain how I got the answer, but that is what I got

sammixboo · Answer

I think I just found the number in the middle of 20 and 28, and then subtracted that number from 28 to get 4.

Take a look here. 

find two numbers whose sum is 100 and whose difference is 50
Number in the middle of 50 and 100 is 75

100 - 75 = 25

Now we have
75 + 25 = 100
75 - 25 = 50

sammixboo · Answer

I don't know the proper way to solve this, ahaha

anonymous · Answer

yay chick

geerky42 · Answer

$a+b = 28$ and $a-b=20$

So add them together:

$a+b+a-b = 2a =48\~\a=24$

So $a+b \to 24+b = 28$
$b = 28-24 = 4$

$\boxed{a=24,~b=4}$

geerky42 · Answer

That's how you can get answer.

sammixboo · Answer

Ah okay :)