Tuesday, July 22, 2014

Addition in Equations


In this lesson, you will learn how to perform addition in equations. Before we begin, let's review what an equation is in mathematics.

A statement that shows that two mathematical expressions are equal.

Addition in Equations

The main thing that you need to focus on when adding in equations is that you have to get the x alone. So, as an example, let's take a look at the following equation:

x + 12 = 56

In order to get the x alone, we need to do the reverse operation of addition, which is subtraction. We will turn the +12 into a -12 and then subtract 12 from both sides. So 12-12 equals 0 and 56-12 equals 44. So that means the x equals 44. We can check this by solving the equation like this:

44 + 12 = 56

So that means that 44 is the correct answer!

x + 12 = 56
x = 44

Sheet 1 Adding Equations

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