Question

解方程,去分母,去括号,移项,合并同类项,

Answer 1

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+2/3=1

x+2=3

x=3-2

x=1