Algebra I / Chapter 2: Multiplication And Division / Introduction
Introduction
In this chapter, we are going to explore the properties of multiplication and division.
Multiplying a number is the same as adding the number repeatedly. For example,
5 ⋅ 3 = 5 + 5 + 5
In other words, multiplying 5 and 3 is the same as adding 5, 3 times.
Division is the "inverse" of multiplication, just as subtraction is the inverse of addition. For example,
5 ⋅ 3 = 15
so
15 / 3 = 5
and
15 / 5 = 3
As before, we will learn how to solve equations that contain variables. Here are some examples:
x ⋅ 3 = 27
45 / c = 3
We will also explore strategies that we can use to simplify more complex equations such as:
x / y ⋅ z ⋅ y = 27 ⋅ z
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