ViaNguyet
ViaNguyet ViaNguyet
  • 12-07-2020
  • Mathematics
contestada

can you please explain how to solve this?

can you please explain how to solve this class=

Respuesta :

Alfpfeu
Alfpfeu Alfpfeu
  • 12-07-2020

Answer:

18

Step-by-step explanation:

hello,

as this is a parallelogram we can write that BE = DE so

15x + 4 = 9x + 6

<=> 15x - 9x + 4 = 6

<=> 6x = 6 - 4 = 2

<=> x = 2/6 = 1/3

so BE = DE = 15/3+4=5+4=9

so BD = BE + DE = 9 + 9 = 18

the correct answer is 18

hope this helps

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