fahad05alwazzan fahad05alwazzan
  • 13-10-2020
  • Mathematics
contestada

4+2b=5+5(b+4)
Help pleasee

Respuesta :

dummyatmath
dummyatmath dummyatmath
  • 13-10-2020

Answer:

4+2b=5+5b+20

<=> -3b=21

<=> b=-7

Step-by-step explanation:

<=> 4+2b=5+5b+5×4

<=> 4+2b=5+5b+20

<=> 2b-5b=5-4+20

<=> -3b=21

<=> b=-21/3

<=> b=-7

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