It looks like this
-4 = 7x-(-1)
-8
I cancled out -8 with -8 and then multiplied -4 by -8. Then I do the usual reverse and do +(-1) to -(-1), and then did +(-1) to 32. I get 31 which i then divide by 7. But 31 can't be divided by 7 and that is were I am stuck. Please help by showing work !