Solve each inequality and give the solution in interval notation:

5-3 |2 x+8| lt -22

 

-7-2 |7 x-5| gt -9

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1 Answer

5 - 3abs(2x+8) < -22

-3abs(2x+8) < -27

abs(2x+8) > 8

2x + 8 > 8 or 2x + 8 < -8

2x > 0 or 2x < -16

x > 0 or x < -8

.

-7 - 2abs(7x-5) > -9

-2abs(7x-5) > -2

abs(7x-5) < 1

-1 < 7x -5 < 1

4 < 7x < 6

4/7 < x < 6/7
by Level 13 User (103k points)

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