4.
Subtract 2 from both sides
|
x |
+ |
2 |
= |
|
5 |
|
|
- |
2 |
|
- |
2 |
|
x |
|
|
= |
|
3 |
Check:
To check a solution to an equation, copy the equation except where
your unknown occurs, substitute the solution in parentheses.
(2) + 3 = 5
Since this is true, the solution checks.