Question

ДАЮ 20 БАЛЛОВ!!! (9/14+4/7x):25=0,04 ПОМОГИТЕ ПЛИЗ!!!

Answer 1

(9/14+4/7х):25=0,04
9/14+4/7х=0,04*25
9/14+4/7х=1
4/7х=1-9/14
4/7х=14/14-9/14=5/14
х=5/14:4/7
х=5/14*7/4=5/2*1/4
х=5/8