The Sum Of Two Numbers Is 59 And Their Difference Is 21
The problem given says that 2 unknown numbers are given, whose sum is equal to 59 and the difference is 21. Let's find the two numbers :When we add the two numbers :
X + Y = 59
The difference of two numbers :
X - Y = 21
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 59 X - Y = 21 2X = 80 |
Let's divide 80 to 2 for the first number "X" .
X/2 = 40
First number is 40
X + Y = 59
So ;
40 + Y = 59
Y = 59 - 40
Y = 19
Second number is 19
Question & Answer
The Sum Of Two Numbers Is 59 And Their Difference Is 21 : 40 And 19