Question

how to find d 0.25(d-12)=4

Answer 1

4/.25=d-12

Answer 2

Distribute first bro.

So, any term on the outside of a bracket, I think of it like its gotta go into the bracket and shake hands with everyone in there... kind of like a party you know?

So, 0.25 x d = 0.25d.

So then it's gotta go in there and shake hands with -12.

So, 0.25 x -12 = -3

So now you have:

0.25d - 3 = 4

You have to solve for d

Bring that 3 over to the other side,

0.25d = 4+3

0.25d = 7

divide 7 by 0.25 to get d

d = 7/0.25

d = 28.

Answer 3

or you can divide the 4 by the .25 and not worry about distribution.
4/.25=16
16=d-12
28=d

Answer 4

Yeah, I know, but it seems like he didn't know how to even begin the problem the simple way... so for future reference when there's more complicated problems involving brackets, it might be a good concept to know.

Answer 5

thanks