Solve $LaTeX: \displaystyle - x - 4 \leq 18$ . Write the solution in interval notation.

Isolating $LaTeX: \displaystyle x$ gives $LaTeX: \displaystyle - x\leq22$ . Dividing off the $LaTeX: \displaystyle x$ coefficient and reversing the inequality symbol because its negative gives $LaTeX: \displaystyle x\geq-22$ . The solution is $LaTeX: \displaystyle \left[-22, \infty\right)$