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Mathematics 11 Online
OpenStudy (anonymous):

Solve for x: |2x + 6| − 4 = 20 x = 9 and x = 11 x = −9 and x = 15 x = 9 and x = −15 No solution

OpenStudy (anonymous):

C :3 -15, 9

OpenStudy (anonymous):

3rd one is right (-15,9)

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