The Sum Of Two Numbers Is 86 And Their Difference Is 19

The problem given says that 2 unknown numbers are given, whose sum is equal to 86 and the difference is 19. Let's find the two numbers :

When we add the two numbers :
X + Y = 86

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 = 86
X - Y = 19

2X = 105

Let's divide 105 to 2 for the first number "X" .

X/2 = 52.5

First number is 52.5

X + Y = 86
So ;
52.5 + Y = 86
Y = 86 - 52.5
Y = 33.5

Second number is 33.5

Question & Answer
The Sum Of Two Numbers Is 86 And Their Difference Is 19 : 52.5 And 33.5