I studied algebra in high school.
Algebra class is difficult.
number of generations
Used in contexts like imperial succession to count generations. Not a common everyday word.
This number represents the number of generations of emperors.
algebraic sum
algebra
algebraic expression
algebraic
algebraic system
From 代 (substitution) + 数 (number), a Meiji-era coinage for 'algebra', where symbols substitute for numbers.