Question

How do you solve `5x-20=5`?

Answer 1

`x=5`

Explanation:

This could be solved by simple observation, but as a detailed analysis:

`color(white)("XXXX")` `5x-20 = 5`
adding 20 to both sides
`color(white)("XXXX")` `5x = 25`
dividing both sides by 5
`color(white)("XXXX")` `x = 5`