Calculate the value of x in the given diagram.

Step-by-step solution:

1. The diagram shows a sequence of operations starting with 0.4.
2. First, multiply 0.4 by -2: $$0.4 \times (-2) = -0.8$$.
3. Next, add -1.8 to the result: $$-0.8 + (-1.8) = -2.6$$.
4. Then, add +1.4 to the result: $$-2.6 + 1.4 = -1.2$$.
5. Finally, subtract -5 from the result: $$-1.2 - (-5) = -1.2 + 5 = 3.8$$.

Answer: x = 3.8