The Sum Of Two Numbers Is 87 And Their Difference Is 23
The problem given says that 2 unknown numbers are given, whose sum is equal to 87 and the difference is 23. Let's find the two numbers :When we add the two numbers :
X + Y = 87
The difference of two numbers :
X - Y = 23
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 87 X - Y = 23 2X = 110 |
Let's divide 110 to 2 for the first number "X" .
X/2 = 55
First number is 55
X + Y = 87
So ;
55 + Y = 87
Y = 87 - 55
Y = 32
Second number is 32
Question & Answer
The Sum Of Two Numbers Is 87 And Their Difference Is 23 : 55 And 32