Answer:
Explanation:
First, Let's take a on both sides:


Remember that 1/x is called the reciprocal. For example the reciprocal of 2 is 1/2 and the reciprocal of 5 is 1/5. If we read the equation is telling us: "Reciprocal of x is b - a". Therefore,
.
Another way to solve it is to multiply x on both sides. Then,


Then divide by (b-a). Remmebre to treat b-a as a factor:

Cancelling (b-a) on the right hand side:
