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Iteru [2.4K]
3 years ago
12

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

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
3 0
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


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