The Sum Of Two Numbers Is 77 And Their Difference Is 11
The problem given says that 2 unknown numbers are given, whose sum is equal to 77 and the difference is 11. Let's find the two numbers :When we add the two numbers :
X + Y = 77
The difference of two numbers :
X - Y = 11
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 77 X - Y = 11 2X = 88 |
Let's divide 88 to 2 for the first number "X" .
X/2 = 44
First number is 44
X + Y = 77
So ;
44 + Y = 77
Y = 77 - 44
Y = 33
Second number is 33
Question & Answer
The Sum Of Two Numbers Is 77 And Their Difference Is 11 : 44 And 33