Question

1/x + 1/a = 1/b; solve for x where a does not equal to b

Answer 1

multuply both sides by x,a,b

Answer 2

the answer choices are:
a) 1/b - 1/a
b) b-a
c) 1/ab
d) a-b/ab
e) ab/a-b

Answer 3

last one part e

Answer 4

i don't get how they arrived at the demoninator

Answer 5

1/x = 1/b - 1/a
1/x = (a-b)/ab
x = ab/(a-b)

Answer 6

after multiplying equation becomes
ab+bx=ax
ab=ax-bx
ab=(a-b)x or multiplying both sides by a-b
ab/(a-b)=x