Question

5(8х-1)-7(4х+1)+8(7-4х)=9

Answer 1

5(8х-1)-7(4х+1)+8(7-4х)=9
40х-5-28х-7+56-32х=9
-20х=-35
х=-35:(-20)
х=1,75

Answer 2

5(8х-1)-7(4х+1)+8(7-4х)=9
40х-5-28х-7+56-32х=9
40х-28х-42х=9+5+7-56
-20х=-35 | : 20
х=1.75