Question

-8.58 / ___ = 3.9 Please give an explanation for the solution.

Answer 1

Answer:

-2.2 = x

Step-by-step explanation:

So, we're trying to find x in our equation here. In order to do this, we need to isolate the variable.

-8.58 / ___ = 3.9

It's easier for me to write out the equation like this:

$\frac{-8.58}{x}$ = 3.9

What we're going to do here is multiply x on both sides.

$\frac{ (x)-8.58}{x}$ = 3.9 (x)

The x with the fraction cancels out, leaving -8.58.  3.9 times x is 3.9x.

Our equation now looks like this:

-8.58 = 3.9x  We now divide 3.9 from both sides.  (3.9x divided by 3.9

-2.2 = x          cancels out, leaving us with x).

We have now found our answer!

Answer 2

Answer:

x = -33.462

Step-by-step explanation:

-8.58/x = 3.9

x = 3.9 x -8.58

x = -33.462