Expressions and One Step Equations

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression. For example, in the expression 2x, 2 is the coefficient.

Front

How many terms are in the expression 5a^2 + 3b - 7?

Back

There are 3 terms in the expression: 5a^2, 3b, and -7.

Front

What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations (like addition, subtraction, multiplication, and division). For example, 4x + 3 is an algebraic expression.

Front

What is a variable in mathematics?

Back

A variable is a symbol (usually a letter) that represents an unknown value. For example, in the expression x + 5, x is the variable.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 5, 5 is the constant.

Front

Solve the equation: x + 3 = 10

Back

x = 7

Front

Solve the equation: 2x = 14

Back

x = 7

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the first step in solving the equation x - 4 = -3?

Back

Add 4 to both sides of the equation to isolate x.

Front

What is the solution to the equation r + 20 = 27?

Back

r = 7