Question

Решите по действиям. (40 7/15-х)*28-8 4/7*4 1/5=278 2/3

Answer 1

(40 7/15-х)*28-8 4/7*4 1/5=278 2/3
(607/15-х)*28=607*28/15-28х
8 4/7*4 1/5=60/7*21/5=36

-28х=836/3+36-16996/15
х=12276/15*28=29 8/35