Mathematical expression stating that two things are equal. Used in algebra, chemistry, physics, etc.
Please solve this equation.
Express a chemical reaction with an equation.
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).
He found the formula for success.
There is no single formula for solving problems.
He says he's found the formula for success.
It took me an hour to solve this equation.
Let's set up an equation based on the problem statement.
When you substitute this value, the equation holds true.
indeterminate equation
equation with two unknowns