The Sum Of Two Numbers Is 79 And Their Difference Is 16
The problem given says that 2 unknown numbers are given, whose sum is equal to 79 and the difference is 16. Let's find the two numbers :When we add the two numbers :
X + Y = 79
The difference of two numbers :
X - Y = 16
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 79 X - Y = 16 2X = 95 |
Let's divide 95 to 2 for the first number "X" .
X/2 = 47.5
First number is 47.5
X + Y = 79
So ;
47.5 + Y = 79
Y = 79 - 47.5
Y = 31.5
Second number is 31.5
Question & Answer
The Sum Of Two Numbers Is 79 And Their Difference Is 16 : 47.5 And 31.5