Question

What is the solution to `16=a-4.2`?

Answer 1

`a = 20.2`

Explanation:

To solve this problem we need to add `color(red)(4.2)` to each side of the equation to determine `a` and keep the equation balanced:

`16 + color(red)(4.2) = a - 4.2 + color(red)(4.2)`

`20.2 = a - 0`

`20.2 = a`

or

`a = 20.2`