4-7 need help

4 Solve the equation for . Assume the letters a, a and e are constants. or - bec bte a 5. Solve the equation for r. a) -2 c) 1= - 6 d) ( 11.4) 6. Find all solutions to the equation. 4r-2-x-1- 3=0 7. Find the equation of the following line in general form. (0, 2) (4, 0) d) - 2x+ y=2 c) 2x + 4y=0 b) -xty=2