How do you make [n] the subject of the formula?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

This is about circle theorems. someone asap : (