Algebra 1

To solve for n in the equation $\frac{-4}{9}$=$\frac{n}{-45}$, we first cross multiply to get the equation (-4)(-45)=(n)(9) 180=9n Then, to solve for n, we'll divide by 9 on both sides of the equation $\frac{180}{9}$=$\frac{9n}{9}$ 20=n