cindy
  • cindy
simplify 2(1-d) - (2d+1) (2-2d) (2d+1) 2-4d+1 = 3-4d is that correct
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[(2-2d)-(2d+1)=2-1-4d=1-4d\]
cindy
  • cindy
so th ne i wrote dwn s wrong
anonymous
  • anonymous
Yes. You have made a mistake in moving from your second step to your third. You've got the coefficient of d correct but you need to realise that subtracting (2d+1) is the same as subtracting 2d and then subtracting 1.

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cindy
  • cindy
can yu show me the steps
anonymous
  • anonymous
\[2(1-d)-(2d+1)=(2-2d)-(2d+1)=(2-2d)-2d-1=1-4d\]

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