The Sum Of Two Numbers Is 70 And Their Difference Is 16

The problem given says that 2 unknown numbers are given, whose sum is equal to 70 and the difference is 16. Let's find the two numbers :

When we add the two numbers :
X + Y = 70

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 = 70
X - Y = 16

2X = 86

Let's divide 86 to 2 for the first number "X" .

X/2 = 43

First number is 43

X + Y = 70
So ;
43 + Y = 70
Y = 70 - 43
Y = 27

Second number is 27

Question & Answer
The Sum Of Two Numbers Is 70 And Their Difference Is 16 : 43 And 27

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