ABSTRACT
This chapter defines ‘subject of the formula’, transposes equations whose terms are connected by plus and/or minus signs and transposes equations that involve fractions. It also transposes equations that contain a root or power and equations in which the subject appears in more than one term. When a symbol other than the subject is required to be calculated it is usual to rearrange the formula to make a new subject. This rearranging process is called transposing the formula or transposition. The rules used for transposition of formulae are the same as those used for the solution of simple equations—basically, that the equality of an equation must be maintained.
