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Zarrin [17]
3 years ago
13

Fifteen more than a number is written as...?

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
8 0

Answer:

x+15

Step-by-step explanation:

Since it says "than a number"

What number is it?

We don't know.

We will say thats a variable.

What variable?

Well it really can be anything. ONLY LETTERS

Lets do a x

Now the problem changed.

Fifteen more than x is written as...?

It says "more"

You use plus.

Now the problem changed.

Since is written as... is your answer so yeah

15+x is the problem.

There you go the answer!

People writes the variable first so:

x+15

The answer is x+15

frozen [14]3 years ago
3 0

Answer:

x + 15

Step-by-step explanation:

Since I don't know what this number is, I'm going to use the variable x to substitute for the value of the unknown number.

So it would just be x + 15 because addition is the operation of adding and the key words are usually more. Since one of the numbers is unknown, we can't get an answer like "100" because x is undefined.

Say x=100, then the number would be written as 115 in it's simplest form but you could also write it as 100+15. So I'm just using substitution.

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