Mhanifa please help im almost done :)

19)

9/4 = (r - 10)/r9r = 4(r - 10)9r = 4r - 405r = -40r = -8

20)

(x + 6)/x = 10/710x = 7(x + 6)10x = 7x + 423x = 42x = 14

21)

(n - 9)/(n + 5) = 7/47(n + 5) = 4(n - 9)7n + 35 = 4n - 363n = -71n = -71/3

22)

6/(b + 9) = 4/(b + 5)6(b + 5) = 4(b + 9)6b + 30 = 4b + 362b = 6b = 3

23)

8/3 = (v - 9)/(7v + 4)8(7v + 4) = 3(v - 9)56v + 32 = 3v - 2753v = - 59v = -59/53

24)

8/(5x - 4) = 6/(x + 5)8(x + 5) = 6(5x - 4)8x + 40 = 30x - 2422x = 64x = 64/22x = 32/11