Respuesta :

Answer:

Third one

Step-by-step explanation:

Two things to solve      3x+9 <= 15

                                        3x <= 6

                                          x <= 2

        and   - (3x+ 9) <= 15

                  - 3x - 9 <= 15

                   - 3x <= 24

                      3x >= -24

                        x > = - 8

s o   -8 <= x <= 2

chetankachana

Answer:

-8 ≤ x ≤ 2

Step-by-step explanation:

Hello!

The absolute value expression gives us two scenarios:

  • 3x + 9 ≤ 15
  • -(3x + 9) ≤ -15

We have to solve for x in both equations.

3x + 9 ≤ 15

  • 3x + 9 ≤ 15
  • 3x ≤ 6
  • x ≤ 2

-(3x + 9) ≤ 15

  • 3x + 9 ≥ -15
  • 3x ≥ -24
  • x ≥ -8

So x is less than or equal to 2, and x is greater than or equal to -8.

The sandwich inequality would be -8 ≤ x ≤ 2.

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