The Sum Of Two Numbers Is 87 And Their Difference Is 26
The problem given says that 2 unknown numbers are given, whose sum is equal to 87 and the difference is 26. Let's find the two numbers :When we add the two numbers :
X + Y = 87
The difference of two numbers :
X - Y = 26
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 87 X - Y = 26 2X = 113 |
Let's divide 113 to 2 for the first number "X" .
X/2 = 56.5
First number is 56.5
X + Y = 87
So ;
56.5 + Y = 87
Y = 87 - 56.5
Y = 30.5
Second number is 30.5
Question & Answer
The Sum Of Two Numbers Is 87 And Their Difference Is 26 : 56.5 And 30.5