janettr832 janettr832
  • 30-09-2020
  • Mathematics
contestada

Solve for x:

- 3x – 7 = x + 9

Respuesta :

fairytinker92
fairytinker92 fairytinker92
  • 01-10-2020

Answer:

x = -4

Step-by-step explanation:

-3x - 7 = x + 9

-3x - 7 + 3x = x + 9 + 3x

-7 = 4x + 9

-7 -9 = 4x + 9 - 9

- 16 = 4x

-16/4 = 4x/4

-4 = x

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