To solve this equation, we can simplify the left side by finding a common denominator for the fractions.

The common denominator for 0.5, 0.2, 0.25, and 0.1 is 0.1.

Rewriting the equation with the common denominator:

(x/0.1) - (x/0.1) - (x/0.1) - (x/0.1) = 6.3

Now, we can combine the fractions on the left side:

4(x/0.1) = 6.3

Multiplying both sides by 0.1 to eliminate the fraction:

4x = 6.3 * 0.1

4x = 0.63

Dividing both sides by 4 to solve for x:

x = 0.63 / 4

x = 0.1575

Therefore, the solution to the equation is x = 0.1575.