-3y-1= 4y-5
Move 4y to the other side
Sign changes from +4y to -4y
-3y-4y-1= 4y-4y-5
-3y-4y-1=-5
-7y-1= -5
Move -1 to the other side
Sign changes from -1 to +1
-7y-1+1= -5+1
-7y= -5+1
-7y= -4
Divide both sides by -7
-7y/-7= -4/-7
Cross out -7 and -7, divide both sides by 7. Then becomes 1*1*y= y
y= -4/-7
Answer: y= 4/7