PEAZIT Aha card
Go straight to resources ↓Equations: keep both sides equal
Apply the same valid operation to both sides.
| Left side | Operation on both sides | Right side |
|---|---|---|
| 2x + 3 | −3 | 11 |
| 2x | ÷2 | 8 |
| x | = | 4 |
One worked example
- 2x + 3 = 11Each x represents the same unknown value.
- 2x = 8Subtract 3 from both sides.
- x = 4Divide both sides by the non-zero number 2.
Watch out: Division by zero is not allowed. Multiplying by zero loses information. Real weights do not model negative values literally.
Goal, prerequisites and card origin
What you will learn: Solve a simple linear equation and check the result.
What you need first: Addition, subtraction, multiplication and division.
An original PEAZIT working card. Independent expert review and effectiveness testing have not yet taken place. · v1
Show connections
Apply the same valid operation to both sides.