A machine prints 230 movie posters each hour. Write and solve an equation to find the number of hour

A machine prints 230 movie posters each hour. Write and solve an equation to find the number of hours it takes the machine to print 1265 posters.

Let h be the number of hours. We're given the following expression for the printing output of the machine:
230h

The questions asks for how long (h) to print 1265 posters, so we setup the equation:
230h = 1265

To solve for h, we type this equation into our math engine and we get:
h = 5.5 hours