The Sum Of Two Numbers Is 90 And Their Difference Is 34
The problem given says that 2 unknown numbers are given, whose sum is equal to 90 and the difference is 34. Let's find the two numbers :When we add the two numbers :
X + Y = 90
The difference of two numbers :
X - Y = 34
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 90 X - Y = 34 2X = 124 |
Let's divide 124 to 2 for the first number "X" .
X/2 = 62
First number is 62
X + Y = 90
So ;
62 + Y = 90
Y = 90 - 62
Y = 28
Second number is 28
Question & Answer
The Sum Of Two Numbers Is 90 And Their Difference Is 34 : 62 And 28