Question

方程1/3{1/7[1/5（x+2/3+4）+6]+8}=3的解为

Answer 1

1/3{1/7[1/5（x+2/3+4）+6]+8}=3

{1/7[1/5（x+2/3+4）+6]+8}=3*3

1/7[1/5（x+2/3+4）+6]+8=9

1/7[1/5（x+2/3+4）+6]=1

1/5(x+2/3+4)+6=7

1/5(x+2/3+4)=1

x+2/3+4=5

x=5-4-2/3

x=1/3