Question

How do you solve `-\frac { x } { 4} = 27`?

Answer 1

`x=-108`

Explanation:

Our goal with these is to isolate the variable, in our case `x`. By doing that, we need to undo any operation being applied to it (more on this at the end of my answer).

Right now, `x` is being divided by `4`, so we must multiply both sides by `4`. We get:

`-x=108`

We can divide both sides by `-1` to get:

`x=-108`

More about undoing operations: To undo...

Multiplication: Divide both sides
Division: Multiply both sides
Addition: Subtract from both sides
Subtraction: Add to both sides

Hope this helps!