Question

simplify
2(1-d) - (2d+1)
(2-2d) (2d+1)
2-4d+1
= 3-4d
is that correct

Answer 1

\[(2-2d)-(2d+1)=2-1-4d=1-4d\]

Answer 2

so th ne i wrote dwn s wrong

Answer 3

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.

Answer 4

can yu show me the steps

Answer 5

\[2(1-d)-(2d+1)=(2-2d)-(2d+1)=(2-2d)-2d-1=1-4d\]