kitty0832
kitty0832 kitty0832
  • 21-06-2019
  • Mathematics
contestada

20 Points!!

Solve 2(4 x + 3) < 5 x + 21.


A) { x | x < 9}
B) { x | x > -5}
C) { x | x > -9}
D) { x | x < 5}

Respuesta :

average97
average97 average97
  • 21-06-2019

Answer:

D

Step-by-step explanation:

8x-5x<21-6

x<15÷3

x<5

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 21-06-2019

Answer:

D) { x | x < 5}

Step-by-step explanation:

2(4 x + 3) < 5 x + 21

Distribute

8x +6 < 5x+21

Subtract 5x from each side

8x-5x+6 < 5x-5x+21

3x+6 < 21

Subtract 6 from each side

3x+6-6<21-6

3x <15

Divide each side by 3

3x/3 <15/3

x < 5

Answer Link

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