Twenty equals four decreased by twice an unknown number.

I need the equation and the solution please I'm almost finished!!!!!!!!!!!!!!!!!!!!

From what you have said, this would be the equation:

20 = 4 - 2n

You can solve for n. (Hint: It is not a positive number.)

I hope this helps. Thanks for asking.

Four decreased by an unknown number

To find the solution to the equation, let's break down the information given.

We're given that "Twenty equals four decreased by twice an unknown number."

Let's assume the unknown number is "x".

Now, let's translate the given statement into an equation:
Twenty equals 4 decreased by twice the unknown number (x).

Mathematically, we can represent this as:
20 = 4 - 2x

Now, we can solve for x:
20 = 4 - 2x

First, let's isolate the term with x on one side by subtracting 4 from both sides:
20 - 4 = -2x

Simplifying the left side of the equation:
16 = -2x

Next, divide both sides of the equation by -2 to solve for x:
16 / -2 = x

Simplifying the equation yields:
x = -8

So, the solution to the equation is:
x = -8

Therefore, the unknown number is -8.