[tex]6x - 21 \leq -3[/tex]
[tex]14x + 11 \geq -17[/tex]
D: All real x.
[tex]\text{From the first equation:}[/tex]
[tex]6x \leq 18[/tex]
[tex]x \leq 3[/tex]
New domain: x is less than or equal to 3.
[tex]\text{From the second equation:}[/tex]
[tex]14x \geq -28[/tex]
[tex]x \geq -2[/tex]
Thus, there is a restriction:
[tex]D: -2 \leq x \leq 3[/tex]
