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45 votes
45 votes
Use the addition property and/or the multiplication properties to find a and b.If -5

User Ashu Pachauri
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3.1k points

1 Answer

12 votes
12 votes

Given : -5 < x < 5

And we need to reach to a < 6x + 2 < b

So,

-5 < x < 5

multiply all sides by 6

So,

-30 < 6x < 30

add 2 to all sides

So,

-30 + 2 < 6x + 2 < 30 + 2

-28 < 6x + 2 < 32

Compare the final result to : a < 6x + 2 < b

So, a = -28 and b = 32

User Arndt Jonasson
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3.0k points