26-06-2019
Mathematics

contestada

Solve |x| + 7 < 4. {x | x < -11 or x > -3} {x | -3 < x < 3} Ø

Respuesta :

01-07-2019

Answer:

[tex]\large\boxed{\O}[/tex]

Step-by-step explanation:

[tex]|x|+7<4\qquad\text{subtract 7 from both sides}\\\\|x|+7-7<4-7\\\\|x|<-3\Rightarrow\ x\in\O\\\\\text{Because}\\\\|x|\geq0\ \text{for all real value of}\ x[/tex]

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