The Sum Of Two Numbers Is 71 And Their Difference Is 19
The problem given says that 2 unknown numbers are given, whose sum is equal to 71 and the difference is 19. Let's find the two numbers :When we add the two numbers :
X + Y = 71
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 = 71 X - Y = 19 2X = 90 |
Let's divide 90 to 2 for the first number "X" .
X/2 = 45
First number is 45
X + Y = 71
So ;
45 + Y = 71
Y = 71 - 45
Y = 26
Second number is 26
Question & Answer
The Sum Of Two Numbers Is 71 And Their Difference Is 19 : 45 And 26