Algebraic Expressions and Equations

Front

What is an equation?

Back

A mathematical sentence showing two expressions are equal.

Front

Solve the equation: 4p = 16

Back

p = 4

Front

Evaluate the expression. Let c = 3 and d = 2: 3c + 7d

Back

23

Front

Which equation models this situation? Jack took 6 pencils from a box, and there are 18 pencils left.

Back

p - 6 = 18

Front

Write an equation that models the statement: 17 less than h equals 42.

Back

h - 17 = 42

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents a number in an expression or equation.

Front

What is an algebraic expression?

Back

A combination of numbers, variables, and operations without an equal sign.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting numbers for variables.

Front

What is the solution of an equation?

Back

The value of the variable that makes the equation true.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign, while an equation does.