The Sum Of Two Numbers Is 43 And Their Difference Is 15
The problem given says that 2 unknown numbers are given, whose sum is equal to 43 and the difference is 15. Let's find the two numbers :When we add the two numbers :
X + Y = 43
The difference of two numbers :
X - Y = 15
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 43 X - Y = 15 2X = 58 |
Let's divide 58 to 2 for the first number "X" .
X/2 = 29
First number is 29
X + Y = 43
So ;
29 + Y = 43
Y = 43 - 29
Y = 14
Second number is 14
Question & Answer
The Sum Of Two Numbers Is 43 And Their Difference Is 15 : 29 And 14