savagewolfnikki
savagewolfnikki savagewolfnikki
  • 24-12-2020
  • Mathematics
contestada

The sum of three times a number and -4 is at least twice the number plus 8

Respuesta :

Yang100
Yang100 Yang100
  • 24-12-2020

Answer:

x<=12

Step-by-step explanation:

3x+(-4)<=2x+8

3x-4<=2x+8

3x-2x-4<=8

x-4<=8

x<=8+4

x<=12

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25griebelsamantha 25griebelsamantha
  • 24-12-2020

Answer:

12 ≤ x

Step-by-step explanation:

3x-4 ≥ 2x+8

3x-3x-4 ≥ 2x-3x+8

-4-8 ≥ -1x+8-8

-12 ≥ -1x

You divide -1 on both sides and get...

12 ≤ x

Because you have to switch the sign around. I hope this helps!!

Answer Link

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