Respuesta :

mantman

Answer:

Step-by-step explanation:

6 times the number is 6x.

7 times the number is 7x.

6 times the number plus 7 times the number is equal to 6x + 7x which is equal to 13x.

for example:

let x = 15

6x = 6 * 15 = 90

7x = 7 * 15 = 105

6x + 7x = 6 * 15 + 7 * 15 = 90 + 105 = 195

facundo3141592

Here we have a statement and we want to write it as a mathematical expression.

The expression that we want to get is:

7×x + 6×y = 31

Now let's see how we get to that.

Let's define:

x = first number

y = second number.

Breaking the statement, we get:

"Seven times the first number..."

This can be written as:

7×x

"... six times the second number..."

This can be written as:

6×y

Then the whole statement:

"Seven times the first number plus six times the second number equals 31"

can be written as:

7×x + 6×y = 31

If you want to learn more, you can read:

https://brainly.com/question/20967307