simplifying and evaluating algebraic expressions

Front

What are variables in an algebraic expression?

Back

Variables are symbols that represent unknown values, typically denoted by letters such as x, y, or z.

Front

What are constants in an algebraic expression?

Back

Constants are fixed values that do not change, such as numbers like 4 or -5.

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

How do you simplify the expression 14k + 4 + 18 - 16k?

Back

The simplified expression is -2k + 22.

Front

What is the process of evaluating an algebraic expression?

Back

Evaluating an expression involves substituting the values of the variables into the expression and performing the arithmetic operations.

Front

Evaluate the expression 6 + 7b - 3a if a = 2 and b = 8.

Back

The result is 56.

Front

How many terms are in the expression 2x + 4 + x - 5x?

Back

There are 4 terms in the expression.

Front

What is the coefficient in the term 5x?

Back

The coefficient is 5, which is the number multiplying the variable x.

Front

What does it mean to combine like terms?

Back

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Front

Simplify the expression 3a + 5a - 2a.

Back

The simplified expression is 6a.