Mathematics for IGCSE & O level - Equations (Section 7 - No. 35)

Which statement is correct regarding rearranging formulas?

Only rearrange the terms on one side of the equation.

You can rearrange the terms and the operations.

Whatever operation is done on one side must be done on the other side.

You should never touch the numbers, only the variables

Maintaining the equation's balance requires applying the same operation to both sides.