Brian Was thinking of a number. Brian adds 8 to it, then doubles it and gets an answer of 16.4. What was the original number?

Help Me With This Question Please! I'm Having A Hard Time Answering With It. :(

The number is 0.2

Step-by-step explanation:

Write an equation for it:

Say that the number was called x

2(x +8) =16.4

Brain added 8 to the number (x) and then doubled it which is the 2

Times out the brackets 2x + 16 = 16.4

Take away 16 from both sides

2x = 0.4

0.4 / 2 = 0.2

0.2

Step-by-step explanation:

Let that number be n

Adds 8: n+8

Then doubles: 2(n+8)

2(n+8) = 16.4

n+8 = 8.2

n = 0.2 or ⅕

what? ?

what type of question is thiss

step-by-step explanation:

3000000000000000000000