Respuesta :

Answer:

see explanation

Step-by-step explanation:

let the number be n then 9 more than n is n + 9 and

n + 9 = 16 → is the equation

subtract 9 from both sides

n = 16 - 9 = 7 ← is the solution


Answer:

16=9+x

x=7

Step-by-step explanation:

Algebraic language springs from common language. It is possible to write with numbers and variables what we express with colloquial language.

In this case we can read: Sixteen is nine more than a number.

We can write literally what is indicated:

16

is (indicates equality)

nine more than a number :  9 + X

So, 16=9+x

Now, we have to clear the variable x find the solution

x=16-9

x=7

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