Explain how to work out these type of questions !

In these types of problems, you have to get x alone, so you have to get rid of the x’s denominator that is 5. To do this, you will multiply both sides by 5. The 5 in the x/5 with cancel and leave only an x.

The next answer would be x=9 times 5 because of this. Then you will just do 9 times 5, which is 45. So the final answer is x=45.