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10 December, 17:41

35-4n=6 (-4n-5) + 5 solve and justify

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  1. 10 December, 19:32
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    35-4n=6 (-4n-5) + 5

    35-4n=-24n-30+5 (simplify)

    35-4n+24n=-24n+24n - 30+5 (add 24n to both sides)

    35+20n=-25 (simply)

    -35+20n=-25-35 (subtract - 35 from both sides)

    20n=-60 (simplify)

    20n=-60 (divide both) by 20

    n=-3
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