Algebra is a branch of MATHEMATICS that deals with the study of symbols and the rules for manipulating those symbols. The crossword solutions for the term ALGEBRA include VALUES (6 letters), QUADRATICS (10 letters), UNKNOWN (7 letters), MATH (4 letters), BOOLE (5 letters), MATHEMATICS (11 letters), and LINEAR (6 letters). VALUES refers to the numbers or constants used in algebraic equations, QUADRATICS are equations with two variables, UNKNOWN is a variable whose value is to be determined, MATH is an abbreviation for MATHEMATICS, BOOLE is a reference to George Boole who developed Boolean algebra, MATHEMATICS is the field of study that includes algebra, and LINEAR is a type of equation with one variable.