14.5-2(x+3)÷5=0.5x÷0.1-(0.4x-2.8)÷0.6
14.5-2x-6÷5=0.5x÷0.1-0.4x+2.8÷0.6
-2x+14.5-6÷5=0.5x-0.4x+2.8÷0.6÷0.1
-2x+14.5-1.2=0.5x-0.4x+2.8÷0.6÷0.1
-2x+13.3=0.5x-0.4x+2.8÷(0.6+0.1)
-2x+13.3=0.1x+4
-2x-0.1x=4-13.3
-2.1x=9.3
x=9.3÷(-2.1)
x=21/93=7/31