(1.3 + 3.8)x = 2.01 + 0.03

1. Sum the numbers in the parenthesis: 5.1x = 2.01 + 0.03.

2. Sum the numbers on the right side: 5.1x = 2.04.

3. Solve for x: x = 2.04 / 5.1.

4. Final answer: x = 0.4.