**Example #2:** Solve *x* – 3 = 8
In this equation, we must add 3 to both sides...
*x* – 3 |
= |
8 |
original equation |
+ 3 |
= |
+ 3 |
add 3 to both sides |
*x* |
= |
11 |
simplify both sides (answer) |
Again, looking back at the original problem, "what number minus 3 equals 8?" We know 11 minus 3 equals 8!
**Example #3: **Solve *x* = 9 + 5
To solve equations using addition, sometimes all you really need is addition! In this case, we can simply add the right hand side
x |
= |
9 + 5 |
original equation |
*x* |
= |
14 |
simplify the right hand side (answer) |
This problem is easy - 9 plus 5 equals 14!
Congratulations, you know now how to solve equations with addition! Next you might want to learn how to solve equations with division. These types of problems are similar, so you should catch on pretty quickly.
If you had a little trouble wtih this page, don't worry - our fundamental skills for how to solve linear equations can help! Good luck! |