Question

How do you solve `x -2 = 9`?

Answer 1

`x = 11`

Explanation:

To find the variable `x`, we have to isolate it (make it by itself).

To do so, add `color(blue)2` to both sides of the equation:
`x - 2 quadcolor(blue)(+quad2) = 9 quadcolor(blue)(+quad2)`

Therefore,
`x = 11`

Hope this helps!