Question

Can someone please explain how to solve this step by step really stuck

Answer 1

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

Explanation:

`(1)/(ax) -(1)/(bx) =1\\(1)/(ax) *(b)/(b) -(1)/(bx) *(a)/(a) =1\\(b)/(abx) -(a)/(abx)=1\\(b-a)/(abx)=1\\b-a=abx\\x=(b-a)/(ab)`