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Remove Number in Front of x


You’ve learned how to get rid of a term on one side of an equation. But what do you do when you’re left with a number—known as a coefficient—in front of x? We’ll take a look at this situation below.

Rule

Removing a Coefficient in Front of a Variable

1.
Move all the terms containing only numbers over to one side. Remember to change signs.
2.
Move all terms containing the variable—x, for example—to the other side. Remember to change signs.
3.
Simplify both sides.
4.
Divide both sides by the number in front of x, known as its coefficient.

Let’s take a look at an example and see what this looks like:

Example 1

2x + 3 = 7 2x = 7 3 2x = 4 2x 2 = 4 2 2x 2 = 4 2 x = 2

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