Question

5(8х-1)-7(4х-1)+8(х-4)=9

Answer 1

40х-5-28+7+8х-32=9
40х+8х=9+5+28-7
48х=14+28-7
48х=42-7
48х=35
х=1(13)

Answer 2

$\ 5*(8*x-1)-7*(4*x-1)+8(x-4)=9 \ \ 40*x-5-28*x+7 + 8*x-32=9 \ \ 40*x-20*x=9-2 \ \ 20*x=8 \ \ x=8/20 \ \ x=0.4$