## Algebra 1

$r=9.75$
We start with the given equation: $-4(r+6)=-63$ We use the distributive property to expand the left side of the equation: $-4r-24=-63$ We add $24$ to both sides of the equation: $-4r-24+24=-63+24$ We combine like terms: $-4r=-39$ Finally, we divide by $-4$ on both sides of the equation: $r=\frac{-39}{-4}=9.75$