The Sum Of Two Numbers Is 43 And Their Difference Is 21
The problem given says that 2 unknown numbers are given, whose sum is equal to 43 and the difference is 21. Let's find the two numbers :When we add the two numbers :
X + Y = 43
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 = 43 X - Y = 21 2X = 64 |
Let's divide 64 to 2 for the first number "X" .
X/2 = 32
First number is 32
X + Y = 43
So ;
32 + Y = 43
Y = 43 - 32
Y = 11
Second number is 11
Question & Answer
The Sum Of Two Numbers Is 43 And Their Difference Is 21 : 32 And 11