sydmoot sydmoot
  • 08-12-2020
  • Mathematics
contestada

Solve for d.
-2 – 9d = -10d - 9

Solve for d 2 9d 10d 9 class=

Respuesta :

jacksonizhere
jacksonizhere jacksonizhere
  • 09-12-2020

Answer:

d = -9

Step-by-step explanation:

-2 - 9d = -10d - 9 (combine liked terms)

+2                    +2  (added two to each side)

-9d = -10d - 9  (combined liked terms again for d this time)

+10d   +10d

1d = -9   (isolate x so divde one from each side)

d = -9

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