Important points:
1. Equation means a condition on the variable such that LHS = RHS.
2. Solution is the value of the variable that satisfies the equation.
3. For a balanced equation, adding, subtracting, dividing & multiplying same number on both the sides, LHS remains equal to RHS.
4. Transposing means moving to the other side.
5. An equation remains the same if the LHS and the RHS are interchanged.
