To solve this equation, we first need to distribute the 0.06 to both terms inside the parentheses:

0.06x + 2.748 - 3.2 = -1.4

Next, combine the like terms:

0.06x - 0.452 = -1.4

Now, isolate the variable term by adding 0.452 to both sides:

0.06x = -1.4 + 0.452
0.06x = -0.948

Finally, divide by 0.06 to solve for x:

x = -0.948 / 0.06
x = -15.8

Therefore, the solution to the equation (x+45.8)/0.06 - 3.2 = -1.4 is x = -15.8.