QuestionAugust 27, 2025

Solve the following absolute value inequality. 4vert x-9vert geqslant 16 xgeqslant [?] xleqslant square

Solve the following absolute value inequality. 4vert x-9vert geqslant 16 xgeqslant [?] xleqslant square
Solve the following
absolute value inequality.
4vert x-9vert geqslant 16
xgeqslant [?]
xleqslant  square

Solution
4.6(228 votes)

Answer

x \geqslant 13 ### x \leqslant 5 Explanation 1. Divide by 4 Divide both sides of the inequality 4\vert x-9\vert \geqslant 16 by 4 to simplify: \vert x-9\vert \geqslant 4. 2. Split into two inequalities The absolute value inequality \vert x-9\vert \geqslant 4 splits into two separate inequalities: x-9 \geqslant 4 and x-9 \leqslant -4. 3. Solve each inequality Solve x-9 \geqslant 4: Add 9 to both sides to get x \geqslant 13. Solve x-9 \leqslant -4: Add 9 to both sides to get x \leqslant 5.

Explanation

1. Divide by 4<br /> Divide both sides of the inequality $4\vert x-9\vert \geqslant 16$ by 4 to simplify: $\vert x-9\vert \geqslant 4$.<br />2. Split into two inequalities<br /> The absolute value inequality $\vert x-9\vert \geqslant 4$ splits into two separate inequalities: $x-9 \geqslant 4$ and $x-9 \leqslant -4$.<br />3. Solve each inequality<br /> Solve $x-9 \geqslant 4$: Add 9 to both sides to get $x \geqslant 13$.<br /> Solve $x-9 \leqslant -4$: Add 9 to both sides to get $x \leqslant 5$.
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