Question

Ill give a medal and fan everyone who gives an answer...posted below (:

Answer 1

\[\frac{ 1 }{ 2} +\frac{ 3 }{ 2d }= \frac{ -1 }{ d }\]

Answer 2

multiply every term by 2d and tell me what you have

Answer 3

d+3=-2
d=-5

Answer 4

wait im confused on the multiplying

Answer 5

what would 1/2 times 2d be?

Answer 6

2d(1/2)+2d(3/2d)=2d(-1/d)
the two cancel in the first term
the 2d cancels in the second
and the d cancels in the third
d+3=-2

Answer 7

1/2+3/2d=-1/d
1*2d+3*2/2*2d=-1/d
2d+6/4d=-1/d
Cross Multiply
2d^2+6d=-4d
2d^2+6d+4d=0
2d^2+10d=0
2d(d+5)=0
2d=0 or d+5=0
d=0 or d=-5

Answer 8

of course d cant equal 0

Answer 9

there is no reason to bring square terms in
simply multiply everything by 2d
d+3=-2
cant get any easier

Answer 10

oh ok i got it thank you (: how do you know what the lcd is?

Answer 11

you have denominators of 2,d,2d

Answer 12

so you find something that all three of those divides
2d is that something

Answer 13

why couldnt it be d?