Linear equations · Grade 6
In Grade 6 you learn: one-step equations.
A linear equation has an unknown, usually x, with no powers — like 3x + 5 = 20. Solving it means finding the value that makes both sides equal. Think of a balance: whatever you do to one side, you must do to the other.
Key facts
- Undo the operations in reverse order: for 3x + 5 = 20, subtract 5 first, then divide by 3.
- Check your answer by substituting it back into the original equation.