Addition & Subtraction of Algebraic Expressions

What does term refer to in algebra?

Numbers and variables in an expression separated by '+' or '⁻' signs.

What are variables in an expression?

Unknowns represented by letters.

What is a constant?

A number without a variable, it stays the same.

What is a coefficient?

A number written alongside a variable, multiplied by it.

What is an exponent?

The number that a variable is raised to.

How do we simplify algebraic expressions?

Collect like terms and add or subtract coefficients.

What happens with same base and different exponents?

Apply rules for addition/subtraction to like terms.

What is the rule for addition/subtraction of algebraic expressions?

Collect like terms and add/subtract their coefficients.

What is the first step in simplifying expressions?

Collect like terms.

What do we do after collecting like terms?

Add or subtract coefficients of like terms.