Question

Which of the following is not an equivalent form of the compound inequality

x + 6 > 15 or x + 6 < 12
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x > 9 or x < 6
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x < 6 or x > 9
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A number line with an open circle on 9, shading to the right, and a closed circle on 6, shading to the left.

A number line with an open circle on 9, a closed circle on 6, and shading in between.

Answer 1

Last one.

Answer 2

Key word: OR