Question

a ≠b and 1/x+ 1/a = 1/b then x=
A. 1/b= 1/a
B. b-a
C. 1/ab
D. a-b/ab
E. ab/a-b

Answer 1

\[\frac{ 1 }{ x }=\frac{ 1 }{ b }-\frac{ 1 }{ a }=\frac{ a-b }{ ab },x=?\]

Answer 2

Where to start reading it from?

Answer 3

\[\frac{1}{x}+\frac{1}{a}=\frac{1}{b}\]?

Answer 4

subtract \(\frac{1}{a}\) from both sides as @surjithaer wrote

Answer 5

you get \[\frac{1}{x}=\frac{1}{b}-\frac{1}{a}\]
then do the subtraction
do you know how to subtract \[\frac{1}{a}-\frac{1}{b}\]?

Answer 6

is either E or D then?

Answer 7

E or D are letters
you have to subtract

Answer 8

then is A

Answer 9

thanks
<3

Answer 10

A doesn't even make sense
you are solving for \(x\) and A says \[\frac{1}{b}=\frac{1}{a}\]

Answer 11

it has to be c then