(x-4 8/5)×3/7=7 5/10
x-28/5=75/10÷3/7=75/10×7/3=25/10×7/1
x-28/5=175/10=35/2
x=175/10+28/5=175/10+56/10
x=231/10=23 1/10=23,1
(231/10-56/10)×3/7=75/10
175/10×3/7=75/10
25/10×3/1=75/10
75/10=75/10
7 5/10=7 5/10
(x-4 8/5)×3/7=7 5/10
x-28/5=75/10÷3/7=75/10×7/3=25/10×7/1
x-28/5=175/10=35/2
x=175/10+28/5=175/10+56/10
x=231/10=23 1/10=23,1
(231/10-56/10)×3/7=75/10
175/10×3/7=75/10
25/10×3/1=75/10
75/10=75/10
7 5/10=7 5/10