maths y7 algebra equations

What you'll learn

1. 1

   An equation is like a seesaw that must stay balanced. If you add weight to one side, you must add the same to the other.

2. 2

   If you add 3 more apples to the left side of a balanced seesaw, what must you do?

3. 3

   Let's balance this equation: x + 3 = 7. Drag the number line to find x.

4. 4

   Let's solve x + 5 = 12 together.

5. 5

   What is the solution to x + 5 = 12?

6. 6

   Now solve x - 2 = 6. Use the number line to find x.

7. 7

   Solve this: x - 3 = 5. What is x?