1. Solving
Equations

2. with Variables

3. on Both Sides

4. Variables on Both Sides
Solving Equations
with
Variables on Both Sides

5. If you had this equation,
how would you move
the 7

6. to the other side
of the equation?

7. You would subtract it . . .
. . . wouldn’t you?

8. This equation is probably
different from
other equations
you have solved.

9. What makes it different? It is different because it has an x
on each side.

10. How would you move
the x
from the right side
to the left?

11. You would move the x
exactly the same way
you would move the 7.

12. You would subtract it . . .
. . . wouldn’t you?

13. Now when you simplify. . .

14. Now when you simplify. . .

15. . . . the equation becomes
the type of equation

16. . . . the equation becomes
the type of equation

17. that you already know
how to solve.

18. that you already know
how to solve.

19. that you already know
how to solve.

20. If you want to solve equations correctly
(Don’t you?)
(and you do)
you will get in the habit
of checking solutions.

21. Checking the solution:
Good solution!

22. Try this one:

23. Good solution! Check your work !
Try this one:
Good solution!
Check your work !

24. You say you want one more? Okay—here’s one more.
If you did, you know the solution is
Did you check you answer?