Question

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

Answer 1

Answer:

$\large\boxed{\O}$

Step-by-step explanation:

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