Module 8 - Expressions & Equations

Front

Solve the equation: 50 = -2.5x

Back

x = -20

Front

Write an expression to represent the perimeter of a figure with sides of length 2x, 2x, 2x, and 2x.

Back

Perimeter = 6x - 8

Front

Simplify the expression: 18m - 9v + 6v - 7m

Back

11m - 3v

Front

Simplify the expression: 1.8y - 9.3y - 6.3y

Back

-13.8y

Front

Which of the following is a true statement? -4(2x - 3) = -8x - 12, -7(4x - 8) = -28x + 56, 5(3x + 6) = 15x + 6, 10 - 2(x + 5) = -2x + 20

Back

-7(4x - 8) = -28x + 56

Front

What is an expression?

Back

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

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What are like terms?

Back

Terms that have the same variable raised to the same power.

Front

What is the distributive property?

Back

a(b + c) = ab + ac; it allows you to multiply a single term by each term in a sum.