marii1231 marii1231
  • 16-10-2020
  • Mathematics
contestada

2x + 3b = 156
5 = b + 8

Respuesta :

toomuch348 toomuch348
  • 16-10-2020

Answer:

x = 29 ,  b = -3

Step-by-step explanation:

5 = b + 8

5 - 8 = b

-3 = b

b = -3

2x + 3b = 156

156 / 3 = 52

52 / 2 = 26

x + b = 26

26 + 3 = 29

x = 29

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