Question

Ix+9I≤ 6. Solve the inequality

Answer 1

\[
|a| < b \implies -b < a < b \\
|a| > b \implies a > 6 \quad a < -6
\]

Answer 2

|A| < b means -b < A < b
|A| > b meabs A > b or A < -b
where A is an expression in x, b is a nonnegative number