dshelton004
dshelton004 dshelton004
  • 21-08-2018
  • Mathematics
contestada

I cant figure this one out. Any pointers?
8.5=6.5(2d-3)+d

Respuesta :

altavistard
altavistard altavistard
  • 21-08-2018

Follow Order of Operations rules (PEMDAS): multiplication before addition and subtraction.

First, apply the distributive property of mult. to 6.5(2d - 3):

13d - 19.5

Then we have 8.5 = 13d - 19.5 + d.

Combining like terms, we get 14d = 8.5 + 19.5, or 14d = 28. Thus, d = 2.

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