Evaluate Algebraic Expressions

Front

What is an algebraic expression?

Back

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

Front

What does it mean to evaluate an algebraic expression?

Back

To evaluate an algebraic expression means to substitute the values of the variables into the expression and perform the operations to find a numerical result.

Front

Evaluate the expression 14.25p + 4.50 when p = 4.

Back

$61.50

Front

What is the value of the expression 8y + 12 - 2z when y = 4 and z = 2?

Back

40

Front

Evaluate the expression 2x + 3 + x² for x = 4.

Back

27

Front

What is the result of evaluating 2(a - 5) + 2 when a = 15?

Back

22

Front

Evaluate the expression 7y - 3y for y = 2.

Back

8

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in an expression or equation. For example, in the expression 3x + 2, x is a variable.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in 5x, 5 is the coefficient.

Front

What does the term 'constant' mean in algebra?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 4, the number 4 is a constant.