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31-01-2022
Mathematics

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three times a number, increased by one, is between negative five and thirteen. find all the numbers

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mathstudent55 mathstudent55

31-01-2022

Answer:

all numbers between -2 and 4

Step-by-step explanation:

-5 < 3x + 1 < 13

Subtract 1 from all 3 sides.

-6 < 3x < 12

Divide all sides by 3.

-2 < x < 4

Answer: all numbers between -2 and 4

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