How do you solve $5abs(9-5n)-7=38$ ?

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Answer 1 · 2016-07-31T17:18:27

$m=0$ or $m=18/5$

$5|9-5m|-7=38$ means

$5|9-5m|=38+7=45$ or

$|9-5m|=45/5=9$

Hence either $9-5m=9$ or $-5m=0$ and $m=0$

or $-(9-5m)=9$ or $5m=18$ or $m=18/5$

How do you solve 5abs(9-5n)-7=385abs(9-5n)-7=38?