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a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots)

the act of regarding as equal; equating

the act of making equal or balanced; equalization

a situation, esp one regarded as having a number of conflicting elements

the state of being equal, equivalent, or equally balanced

a situation or problem in which a number of factors need to be considered

See chemical equation

astronomy See personal equation

Mathematics��A written statement indicating the equality of two expressions. It consists of a sequence of symbols that is split into left and right sides joined by an equal sign. For example, 2 + 3 + 5 = 10 is an equation.

Chemistry��A written representation of a chemical reaction, in which the symbols and amounts of the reactants are separated from those of the products by an equal sign, arrow, or a set of opposing arrows. For example, Ca(OH) ₂ + H ₂ SO ₄ = CaSO ₄ + 2H ₂ O, is an equation.