dcardozap5gp68
dcardozap5gp68
12-03-2018
Mathematics
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solve the compound inequality
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mathstudent55
mathstudent55
12-03-2018
In the middle part, you have x + 4.
You want x alone, so subtract 4 from each of the 3 parts.
[tex] -3 \le x + 4 \le 13 [/tex]
[tex] -3 - 4 \le x + 4 - 4 \le 13 - 4 [/tex]
[tex] -7 \le x \le 9 [/tex]
[tex] x \ge -7 [/tex] and [tex] x \le 9 [/tex]
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