Answer
$y = -1\frac{3}{5}$
Work Step by Step
$\frac{5}{8}y = -1$
We need to isolate the variable $y$ by multiplying through by the reciprocal of the coefficient of $y$ as shown below:
$\frac{5}{8}y \times \frac{8}{5} = -1 \times \frac{8}{5}$
Simplifying we have:
$y = -\frac{8}{5}$
Leaving the answer to the simplest form, we have:
$y = -1\frac{3}{5}$