The Sum Of Two Numbers Is 49 And Their Difference Is 19

The problem given says that 2 unknown numbers are given, whose sum is equal to 49 and the difference is 19. Let's find the two numbers :

When we add the two numbers :
X + Y = 49

The difference of two numbers :
X - Y = 19

Solution :

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

X + Y = 49
X - Y = 19

2X = 68

Let's divide 68 to 2 for the first number "X" .

X/2 = 34

First number is 34

X + Y = 49
So ;
34 + Y = 49
Y = 49 - 34
Y = 15

Second number is 15

Question & Answer
The Sum Of Two Numbers Is 49 And Their Difference Is 19 : 34 And 15