The Sum Of Two Numbers Is 63 And Their Difference Is 28

The problem given says that 2 unknown numbers are given, whose sum is equal to 63 and the difference is 28. Let's find the two numbers :

When we add the two numbers :
X + Y = 63

The difference of two numbers :
X - Y = 28

Solution :

If we add the two equations eachother , then we can find the first number.

X + Y = 63
X - Y = 28

2X = 91

Let's divide 91 to 2 for the first number "X" .

X/2 = 45.5

First number is 45.5

X + Y = 63
So ;
45.5 + Y = 63
Y = 63 - 45.5
Y = 17.5

Second number is 17.5

Question & Answer
The Sum Of Two Numbers Is 63 And Their Difference Is 28 : 45.5 And 17.5

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