Answer
$y=-4$
Work Step by Step
We start with the given equation: $\frac{y}{4}-3=-4$
First, we add $3$ to both sides of the equation: $\frac{y}{4}-3+3=-4+3$
Next, we combine like terms on each side of the equation: $\frac{y}{4}=-1$
Finally, we multiply both sides of the equation by $4$ to clear the fraction: $4\times\frac{y}{4}=4\times-1$
$y=-4$