The Sum Of Two Numbers Is 55 And Their Difference Is 19

The problem given says that 2 unknown numbers are given, whose sum is equal to 55 and the difference is 19. Let's find the two numbers :

When we add the two numbers :
X + Y = 55

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 = 55
X - Y = 19

2X = 74

Let's divide 74 to 2 for the first number "X" .

X/2 = 37

First number is 37

X + Y = 55
So ;
37 + Y = 55
Y = 55 - 37
Y = 18

Second number is 18

Question & Answer
The Sum Of Two Numbers Is 55 And Their Difference Is 19 : 37 And 18