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Equation: Definition, Meanings & How to Use It (2 meaning)
Meaning 1：mathematical equality (equation)
equation
/ɪˈkweɪʒn/
n.
A math statement showing that two amounts are equal, often with an unknown number (like 'x') to find.
mathematical equality
➕
/ˌmæθəˈmætɪkəl ɪˈkwɒləti/
n.
A statement in mathematics that asserts the equality of two expressions, often containing one or more variables.
📘 Details & Usage
📖 Root Explanation
From Latin 'aequus' (equal) + '-ation' (state), meaning 'state of being equal'.
💡 Mnemonic
"EQUAL action" – an equation requires equal action on both sides.
📖 Example
In the math test, I managed to solve the equation '2x + 5 = 13' and found that x equals 4.
During the math exam, I successfully solved the equation '2x + 5 = 13' and determined that x is equal to 4.
🔗 Collocations
solve an equation – to find the value of the unknown in an equation
balance an equation – to make both sides of an equation equal
linear equation – an equation of the first degree
🔄 Synonyms
formula (n.) – a mathematical relationship expressed in symbols
expression (n.) – a combination of symbols in mathematics
🚫 Antonyms
inequality (n.) – a mathematical statement that two expressions are not equal
🌱 Derivatives
equational (adj.) – relating to or involving equations
📖 Cultural Story
Originates from Latin 'aequatio' (making equal). Used in medieval Latin for mathematics. Today, it's common in business to mean considering all variables in a decision.
Meaning 2：complex situation (equation)
equation
/ɪˈkweɪʒn/
n.
A complicated situation where you need to think about many different factors together to understand it.
complex situation
➕
/ˈkɒmpleks ˌsɪtʃuˈeɪʃn/
n.
A multifaceted circumstance where multiple interconnected factors must be considered to reach understanding or make a decision.
📘 Details & Usage
📖 Example
When choosing a new job, salary is just one part of the equation; you also need to consider work-life balance, career growth, and company culture.
When selecting a new position, pay is merely one component of the equation; factors like work-life balance, career development, and organizational values are equally important.
🔗 Collocations
part of the equation – one factor among many in a complex situation
change the equation – to alter the factors or balance in a situation
human equation – the aspect of human behavior or emotion in a situation
🔄 Synonyms
🚫 Antonyms
simple matter (n.) – something straightforward with few complicating factors
🌱 Derivatives
equate (v.) – to consider one thing as similar or analogous to another
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