dybriahm dybriahm
  • 24-11-2020
  • Mathematics
contestada

Whats 2x+4=5x+7=20x+8=9x+10=

Respuesta :

SarahAlmurbati
SarahAlmurbati SarahAlmurbati
  • 25-11-2020

Answer:

x=-1 29/180 ~ -1.161

Step-by-step explanation:

first 2x+4=5x+7

2x+4-5x=7

-3x+4=7

-3x=7-4

-3x=3

x=3/-3

x=-1

then

-1=20x+8

20x+8=-1

20x=-1-8

20x=-9

x=-9/20

and after

-9/20=9x+10

-9x-9/20=10

-9x=10+9/20

-9x=209/20

x=-209/180

x=-1 29/180 ~ -1.161

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