Meaning of EQUATION in English
[noun] [C] - a mathematical statement that two amounts, or two symbols or groups of symbols representing an amount, are equal, or (figurative) a difficult problem which can only be understood if all the different influences are consideredIn the equation 3x - 3 = 15, x = 6.(figurative) Managing the economy is a complex equation of controlling inflation and reducing unemployment.(figurative) Closing the factory would reduce pollution, but the other side of the equation is that (= the other result is that) a lot of people would lose their jobs.
Cambridge English vocab. Кембриджский английский словарь. 2012