Question

What is the value of n? 40= -5n/8

Answer 1

To find value of n, we have to have only one n of the RHS.
To do this, we can multiply both sides by 8
$40= \frac{-5n}{8}$ /*8
$320=-5n$
Now we can divide both sides by -5
$320=-5n$  / :(-5)
$-64=n$

Result is -64

Answer 2

$40=-\frac{5n}{8}\ \ \ |Multiply\ by\ 8\ \ \ both\ sides\\\\ 320=-5n\ \ \ |Divide\ by\ (-5)\\\\ n=-64\\\\Solution\ is\ -64.$