Question

100-(307,3-20,4х):2,6=99,5 Помогите найти "х"

Answer 1

100-(307,3-20,4х):2,6=99,5
(307,3-20,4х):2,6=99,5-100
(307,3-20,4х):2,6=-0,5
307,3-20,4х=-1,3
20,4х=307,3-1,3
20,4х=306
х=306/20,4
х=15