The Sum Of Two Numbers Is 64 And Their Difference Is 30
The problem given says that 2 unknown numbers are given, whose sum is equal to 64 and the difference is 30. Let's find the two numbers :When we add the two numbers :
X + Y = 64
The difference of two numbers :
X - Y = 30
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 64 X - Y = 30 2X = 94 |
Let's divide 94 to 2 for the first number "X" .
X/2 = 47
First number is 47
X + Y = 64
So ;
47 + Y = 64
Y = 64 - 47
Y = 17
Second number is 17
Question & Answer
The Sum Of Two Numbers Is 64 And Their Difference Is 30 : 47 And 17