5(8x-1)-7(4x+1)+8(7-4x)=9

Question

5(8x-1)-7(4x+1)+8(7-4x)=9

Answer 1

40х -5 -28х -7+56-32х=9
-20х=-35
х=35÷20
х=1.75

Answer 2

5(8x-1)-7(4x+1)+8(7-4x)=9
40x-5-28x-7+56-32x=9
40x-28x-32x=9+5+7-56
-20x=-35
x=1.75

Comments

в конце там 35 ÷ 20 а не 20÷35