The Sum Of Two Numbers Is 75 And Their Difference Is 10

The problem given says that 2 unknown numbers are given, whose sum is equal to 75 and the difference is 10. Let's find the two numbers :

When we add the two numbers :
X + Y = 75

The difference of two numbers :
X + Y = 10

Solution :

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

X + Y = 75
X - Y = 10

2X = 85

Let's divide 85 to 2 for the first number "X" .

X/2 = 42.5

First number is 42.5

X + Y = 75
So ;
42.5 + Y = 75
Y = 75 - 42.5
Y = 32.5

Second number is 32.5

Question & Answer
The Sum Of Two Numbers Is 75 And Their Difference Is 10 : 42.5 And 32.5

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