For OB divide 8x by 8 and do the same to the 2 (8x/8 )and you just stay with the x an then you divide 2 and 8 and you get 0.25 and that’s your answer ( x = 0.25)
For BR you divide 4x by 4 and keep the x (4x/4) and then you divide 20 by 4 and get 5 and that’s your answer ( x = 5)
