How do you solve $-4abs(8-5n)-7=13$ ?

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Answer 1 · 2015-07-07T14:50:39

$n \in \emptyset$

Let's isolate the modulus.

$-4|8 - 5n| = 20$

$|8 - 5n| = -5 = |y|$

Is there a number y, whose modulus is negative?

How do you solve -4abs(8-5n)-7=13-4abs(8-5n)-7=13?