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Mathematics 23 Online
OpenStudy (anonymous):

I7k +4I <= 9

OpenStudy (anonymous):

|7k+4| <= 9 First we subtract four (4) from both sides |7k|<=5 Now we divide both sides by seven (7) |k|<=0.71 So (k) is less than or equal to: (0.71 or -0.71)

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