# math

whats x in the expression 5x=20

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1. 5x = 20

Divide both sides by 5 to isolate x.

5x/5 = 20/5
x = ?

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2. Divide both sides of the equation by 4 to get the answer.

x = 4 . It has to be 4 if the equation is to be valid.

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3. 5x=20

This means that 5 times some number is 20. To find that number, divide both sides of the equation by 5.

5x = 20
x = 20/5
x = 4

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4. whoops. Ms Sue is right, of course. I meant "divide both sides by 5" and that is what I did.

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