1. Solving Equations
A Step by step approach

2. Examine
Look to see what operation is being used
X + 4 = 7

3. Undo
If the problem has addition in it, you are going to use the inverse operation (subtraction) to undo the addition.
X + 4 = 7

4. Solve
So X = 3

5. Check
Does = 7 Yes so it checks

6. Examine
Y - 5 = 9
What operation do you see?

7. Undo
Y - 5 = 9
+5 =5
If the problem has subtraction in it, you are going to use the inverse operation (addition) to undo it.

8. Solve
So Y = 14

9. Check
Does = 9
Yes so it checks!

10. Examine
2X = 18
What operation do you see?

11. Undo
2X = 18
If the problem has multiplication in it, you are going to use the inverse operation (division) to undo it.

12. Solve
X = 9

13. Check
Does 18/2 = 9
Yes! So it checks!

14. Examine
A/3 = 4
What operation do you see?

15. Undo
A/3 (3) = 4 (3)
If the problem has division in it,you are going to use the inverse operation (multiplication) to undo it.

16. Solve
A = 12

17. Check
Does 12/3 = 4
Yes so it checks!