Practice Test (Equations 12.18)

Front

What is the product of n², n⁴, and n⁵?

Back

n¹¹

Front

How many solutions does the equation 3(10x + 2) = 30x + 6 have?

Back

Infinite Solutions

Front

Why is it okay to multiply 4 by -5 in the equation 4(3x - 5) = 9 - 8x?

Back

Because it is a good idea to start with the distributive property and multiply the 4 by 3x and by -5!

Front

What can you multiply each term by to simplify the equation 0.2x - 17.6 = 1.9?

Back

10

Front

How many solutions does the equation 3x - 20 = 3x + 2 have?

Back

No Solution

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What does it mean for an equation to have no solution?

Back

It means that there are no values for the variable that will satisfy the equation.

Front

What is an example of an equation with infinite solutions?

Back

An example is 2x + 3 = 2x + 3.

Front

What is the commutative property of addition?

Back

The commutative property states that a + b = b + a.

Front

What is the first step to solve the equation 4(3x - 5) = 9 - 8x?

Back

Use the distributive property to expand the left side.