How to solve /d + 9/ > 3

Mathematics

1 answer:

Serjik [45]4 years ago

6 0

$|d+9| > 3\iff d+9 > 3\ \vee\ d+9 < -3\qquad|\text{subtract 9 from both sides}\\\\d > -6\ \vee\ d < -12$

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