noun
Mathematical expression stating that two things are equal. Used in algebra, chemistry, physics, etc.
この方程式を解いてください。
Please solve this equation.
化学反応を方程式で表す
Express a chemical reaction with an equation.
noun
Figurative use: a fixed procedure or set of conditions for achieving something. Often used in phrases like 成功の方程式 (formula for success).
彼は成功の方程式を見つけた。
He found the formula for success.
問題解決の方程式は一つではない。
There is no single formula for solving problems.