The Sum Of Two Numbers Is 84 And Their Difference Is 6
The problem given says that 2 unknown numbers are given, whose sum is equal to 84 and the difference is 6. Let's find the two numbers :When we add the two numbers :
X + Y = 84
The difference of two numbers :
X - Y = 6
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 84 X - Y = 6 2X = 90 |
Let's divide 90 to 2 for the first number "X" .
X/2 = 45
First number is 45
X + Y = 84
So ;
45 + Y = 84
Y = 84 - 45
Y = 39
Second number is 39
Question & Answer
The Sum Of Two Numbers Is 84 And Their Difference Is 6 : 45 And 39