3x+1=13 how do I get the answer ?

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Alister Doyle, I work at Noodle.

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To solve for x you can first subtract 1 from both sides of the equation so that you are left with 3x = 12. You then just need to divide both sides by 3, which gives you x = 4. Here is a helpful video on solving equations that should help you in future.

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