Answer :

eunice1234

Answer: The number is 5

Step-by-step explanation:

I assume you are asking for finding the number.

For this kind of question, just accord to the statements and write an equation.

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Let x = the number

2(x+5)=20

  x+5=10

      x=5

ZJSG09112007

Answer:

x = 5

Step-by-step explanation:

Let the unknown number be x

[tex]2(x + 5) = 20[/tex]

Expand

[tex]2(x + 5) = 2x + 10 \\ 2x + 10 = 20[/tex]

Collect like terms and simplify

[tex]2x = 20 - 10 \\ 2x = 10[/tex]

Divide both sides of the equation by 2

[tex] \frac{2x}{ 2} = \frac{10}{2} \\ x = 5[/tex]

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