Expressions, Equations, Inequalities (7th Grade)

Front

What is a coefficient in an expression?

Back

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

Front

How do you factor the expression 12x - 20?

Back

The factored form is 4(3x - 5).

Front

What is the solution to the equation -3x + 5 = -13?

Back

x = 6.

Front

What is the result of simplifying (7a + 4) - (9a + 2)?

Back

The simplified expression is -2a + 2.

Front

How do you solve the equation 3 + (1/4)a = 31 for a?

Back

The solution is a = 112.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you multiply a by each term inside the parentheses.