Find the value of two numbers if their sum is 78 and their difference is 22.

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asked Nov 16, 2019 146k views

1 Answer

Itsnikolay · Answer 1 · 2019-11-22T13:06:21+0000

x+y=78
x-y=22
Make x the subject
22+y=x
substitute in 1st equation
(22+y)+y=78
22+2y=78
y=28
place 28 in any equation
x-(28)=22
x=50
therefore one value is 28 and the other is 50
Hope this helps

Find the value of two numbers if their sum is 78 and their difference is 22.

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