Question

Write an explanation of how you would solve the following equation
4/5 x = -15

Answer 1

`x = -(75)/(4)`

Explanation:

Question:

`(4)/(5)x = -15`

Now, we multiply both sides by 5:

`(4)/(5) x*5 = -15*5`

Simplify:

`4x = -75`

Divide both sides by 4:

`x = -(75)/(4)`

Answer 2

-18.75

Explanation:

Since the x is being multiplied by 4/5, we have to divide by 4/5 on both sides.

How to divide by 4/5? Take the reciprocal. The reciprocal to 4/5 is 5/4 (flip it).

Multiply both sides by 5/4.

5/4(4/5x)=5/4(-15)

x=-18.75