Question

The sum of twice a number and seven is 13. Find the number.

Answer 1

Answer:

The answer is 3

Step-by-step explanation:

Let the number be x

The statement

twice a number is written as

2x

The sum of twice a number and seven is written as

2x + 7

The result is 13

So we have

2x + 7 = 13

Subtract 7 from both sides

That's

2x + 7 - 7 = 13 - 7

2x = 6

Divide both sides by 2

That's

$\frac{2x}{2} = \frac{6}{2}$

We have the final answer as

x = 3

Hope this helps you