Log3log8log2 (x-5) = log3 2-1

log3log8log2 (x-5) = log3(2) -1 log3log8log2 (x-5) = log3(2) - log3(3)  log3log8log2 (x-5) = log3(2/3)   log8log2 (x-5) = 2/3   log8log2 (x-5) = log8 (8^(2/3))   log8log2 (x-5) = log8(4)    log2 (x-5) = 4    log2 (x-5) = log2(2^4)     log2 (x-5) = log2(16)    x-5 =16     x=21   Проверка  log3log8log2 (21-5) =  log3log8log2(16) =  log3log8(4) = log3(2/3)  = log3(2)-1 Ответ:21