To solve the equation, we first remove the parentheses by distributing the 7.1:

7.1(х + 0.2) + 1.8 = 7.1х + 3.22
7.1х + 1.42 + 1.8 = 7.1х + 3.22

Now, combine like terms:

7.1х + 3.22 = 7.1х + 3.22

Since the terms are the same on both sides of the equation, this equation is identity and will be true for all values of x.