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charle [14.2K]
3 years ago
5

6n+9=-3n-21-6 Show step fast pleaseee

Mathematics
1 answer:
sukhopar [10]3 years ago
5 0

6n + 9 = -3n <u>-21 -6</u>

<u>6n</u> + 9 = <u>-3n</u> -27

   +3n    +3n

9n <u>+9</u> = <u>-27</u>

    -9    -9

<u>9n</u> = <u>-36</u>

<u>Divide by 9 on both sides</u>

n = -4

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