(0.3x-1)÷0.02-(4x-8)÷0.5=1
(0.3x-1)÷(1/50)-(4x-8)÷(1/2)=1
(0.3x-1)×50-(4x-8)×2=1
15x-50-8x+16=1
15x-8x-50+16=1
7x-34=1
7x=1+34
7x=35
x=5
(0.3x-1)÷0.02-(4x-8)÷0.5=1
(0.3x-1)÷(1/50)-(4x-8)÷(1/2)=1
(0.3x-1)×50-(4x-8)×2=1
15x-50-8x+16=1
15x-8x-50+16=1
7x-34=1
7x=1+34
7x=35
x=5