Algebraic Expressions: Combining Like Terms

Front

What are coefficients in an algebraic expression?

Back

Coefficients are the numerical factors in terms of an algebraic expression. For example, in the expression 8a + b + 9, the coefficients are 8 (for 'a') and 1 (for 'b').

Front

Simplify the expression: 5x - 6x - 8x + 7

Back

-9x + 7

Front

What is the term that describes the letter that stands for an unknown number in an algebraic expression?

Back

Variable

Front

Simplify the expression: -r - 10r

Back

-11r

Front

In the expression 3p + 4, what is the word for the number 3?

Back

Coefficient

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Front

What does it mean to combine like terms?

Back

Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Front

What is a term in an algebraic expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

Front

What is the coefficient in the term 7x?

Back

The coefficient is 7.