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27 January, 01:59

What is the answer to 4n+5n+15=5n+7n

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  1. 27 January, 02:10
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    Ok so on both sides of the equation you first must combine like terms. So on the left side 4n+5n is 9n. On the right side 5n+7n is 12n. Now our equation looks like this: 9n+15=12n. So, subtract 9n from both sides and you are left with 15=3n. Then divide both sides by 3 and you get 5=n as your answer.
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