The Sum Of Two Numbers Is 43 And Their Difference Is 7
The problem given says that 2 unknown numbers are given, whose sum is equal to 43 and the difference is 7. Let's find the two numbers :When we add the two numbers :
X + Y = 43
The difference of two numbers :
X - Y = 7
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 43 X - Y = 7 2X = 50 |
Let's divide 50 to 2 for the first number "X" .
X/2 = 25
First number is 25
X + Y = 43
So ;
25 + Y = 43
Y = 43 - 25
Y = 18
Second number is 18
Question & Answer
The Sum Of Two Numbers Is 43 And Their Difference Is 7 : 25 And 18