Question

What is x please

3x +9 = 12

Answer 1

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➷ 3x + 9 = 12

Subtract 9 from both sides:

3x + 9 - 9 = 12 - 9

As you can see, the '9' would cancel out on the left side:

3x = 3

Divide both sides by 3:

x = 1

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Answer 2

3x + 9 =12

To solve for x you need to get it by itself.

First subtract 9 from both sides of the equation:

3x = 3

Now divide both sides by 3

x = 3/3

x = 1