UNDOING OPERATIONS

SO WHAT ABOUT MULTIPLICATION?

We undo multiplication with division. However, sometimes multiplication can be hard to spot.

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So an example is this:

If we have something like: 2x = 40

2x is the same as saying 2 * x, so if we want x by itself we divide by 2.

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2 2

After we divide by 2, we have that x = 20

SOME EXAMPLES FOR UNDOING MULTIPLICATION

1. 30x = 60

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• 50x = 25

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• 400x = 400

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• 200x = 200

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• 11x = 121

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30 30

x = 2

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400 400

x = 1

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200 200

x = 1

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11 11

x = 11