Question

Find all real number x such that 
6x-21≥3 or 14x+11≤-7

Answer 1

`6x-21 \geq 3\\ \\ 6x \geq 3+21\\ \\ 6x \geq 24\\ \\ x \geq (24)/(6)\\ \\ \boxed{x \geq 4}`


`14x+11 \leq -7\\ \\ 14x \leq -7-11\\ \\ 14x \leq -18\\ \\ x \leq (19)/(14)\\ \\ x \leq (9)/(7)`