The sum of two number is 11 their diffrence is 5. what is the number?

1 Answer
May 15, 2018

The answer to this problem is the two numbers 3 and 8.

Explanation:

The reason for this is because you have two unknowns, or variables, that add up to 11. Also, we know that one of those values is five less than the other.

So, we can deduce that the equation would be

x + x - 5 = 11

Solving this would result in first adding five to both sides so that

2x = 16

and dividing both sides by two

x = 8

So now we have the first term, and for the second term, you can do one of two things.

The first, understand that 8 is the first term and to find the second would simply be to subtract 5 resulting in the answer 3.

The second way would be to plug it back into the equation so that

8 + x = 11

Subtract 8 from both sides and you get

x = 3