1.4(2-5x) = 15 - (7x + 12.2)

First, distribute the 1.4 on the left side:

2.8 - 7x = 15 - (7x + 12.2)

Next, distribute the negative sign on the right side:

2.8 - 7x = 15 - 7x - 12.2

Now, combine like terms on the right side:

2.8 - 7x = 2.8 - 7x

Since both sides of the equation are equal, this equation has no solution.