The Sum Of Two Numbers Is 50 And Their Difference Is 10

The problem given says that 2 unknown numbers are given, whose sum is equal to 50 and the difference is 10. Let's find the two numbers :

When we add the two numbers :
X + Y = 50

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 = 50
X - Y = 10

2X = 60

Let's divide 60 to 2 for the first number "X" .

X/2 = 30

First number is 30

X + Y = 50
So ;
30 + Y = 50
Y = 50 - 30
Y = 20

Second number is 20

Question & Answer
The Sum Of Two Numbers Is 50 And Their Difference Is 10 : 30 And 20