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

Answer 1

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

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#

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Answer 2

Avery Alexander

Let (x) be the first number and (y) be the second number. Given:

(x + y = 11)
(x - y = 5)

By solving these equations simultaneously, we find: (x = 8) and (y = 3)

So, the numbers are 8 and 3.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.