d0z d0z
  • 08-11-2018
  • Mathematics
contestada

Help me solve this equation 4x - 9 = 7x + 12

Respuesta :

1940153132 1940153132
  • 08-11-2018

1:    -12-9=7x-4x

2:    -21=3x

3:      x=-7

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