53 \ 12 - 28 \ 5 х = 8\3
28 \ х = 53 \12 - 8 \ 3 = 21 \ 12 = 7 \ 4
х = 7 \ 4 : 28 \ 5 = 7 \ 4 * 5 \ 28 = 5 \ 16
53 \ 12 - 28 \ 5 х = 8\3
28 \ х = 53 \12 - 8 \ 3 = 21 \ 12 = 7 \ 4
х = 7 \ 4 : 28 \ 5 = 7 \ 4 * 5 \ 28 = 5 \ 16