Verified answer

 5(4-7x)+1=34-9x

20-35х+1=34-9х

-35х+9х=34-20-1

-26х=13

х=13:(-26)

х= -0,5

Verified answer

20-35x+1=34-9x

-35x+9x=-20-1+34

-26x=13

x=13/-26

x=-0.5