The Sum Of Two Numbers Is 63 And Their Difference Is 20
The problem given says that 2 unknown numbers are given, whose sum is equal to 63 and the difference is 20. Let's find the two numbers :When we add the two numbers :
X + Y = 63
The difference of two numbers :
X - Y = 20
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 63 X - Y = 20 2X = 83 |
Let's divide 83 to 2 for the first number "X" .
X/2 = 41.5
First number is 41.5
X + Y = 63
So ;
41.5 + Y = 63
Y = 63 - 41.5
Y = 21.5
Second number is 21.5
Question & Answer
The Sum Of Two Numbers Is 63 And Their Difference Is 20 : 41.5 And 21.5