EQUAL n.
the same or a similar age, rank, station, office, talents, strength, or other quality or condition; an equal quantity or number; as, "If equals be taken from equals the remainders are equal." Those who were once his equals envy and defame him. Addison.
EQUATION n. 2 definitions
An expression of the condition of equality between two algebraic quantities or sets of quantities, the sign = being placed between them; as, a binomial equation; a quadratic equation; an algebraic equation; a transcendental equation; an exponential equation; a logarithmic equation; a differential equation, etc.…