The Sum Of Two Numbers Is 77 And Their Difference Is 37
The problem given says that 2 unknown numbers are given, whose sum is equal to 77 and the difference is 37. Let's find the two numbers :When we add the two numbers :
X + Y = 77
The difference of two numbers :
X - Y = 37
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 77 X - Y = 37 2X = 114 |
Let's divide 114 to 2 for the first number "X" .
X/2 = 57
First number is 57
X + Y = 77
So ;
57 + Y = 77
Y = 77 - 57
Y = 20
Second number is 20
Question & Answer
The Sum Of Two Numbers Is 77 And Their Difference Is 37 : 57 And 20