R 4 5 2 July 8, 2019 16 32 64 128 R 4 5 25 R 4 5 2r 3 4 r 5 20 R 5 2r 4 90 1 2 r /- 4 5 6 5 4 r )= 1 2 40 10r R 1 2 3 4 5 6 R 1 2 3 4 5 R 4 23 5 R 4 23 5 nj 4 r 20 5 two step equation Y&r 4 5 24 R 4 - 5 or 2r 7 3 1 4 r 5 2 )= 1 8 R 4 5 =- 2 1 4
