when 7 is added to an unknown number the answer is twice the unknown number .what is the unknown number

The unknown number is 7.

Explanation:

If you're adding 7 to it, and it becomes twice of itself. Meaning the unknown number, x. Was multiplied by a factor of 2. So 2x. Or 7+x=2x.

7

Step-by-step explanation:

Let's call the unknown number n.

7 + n

7 + n = 2n

Isolate the variable by subtracting n from each side.

7 = n.

The unknown number is 7.

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get

p - 6

step-by-step explanation

so you know that it cost $6 to see a movie you subtract p - 6 to get your answer

hope this !