Question

How do you solve for x in `4+x=k`?

Answer 1

`x=k-4`

Explanation:

In this type of equation called a `color(blue)"literal equation"` since it has a combination of numbers and letters, we treat the k as a numeric value.

To isolate x on the left of the equation, subtract 4 from both sides.

`cancel(4)cancel(-4)+x=k-4`

`rArrx=k-4" is the solution"`