Question

X:4.28+16.47=19.97
Помогите!!!

Answer 1

х/4.28=19.97-16.47
х:4.28=3.5
х=4.28•3.5= 14.98

Answer 2

x:4,28+16,47=19,97;
x:4,28=19,97-16,47;
x:4,28=3,5;
x=3,5*4,28;
x=14,98.

ПРОВЕРКА:
14,98:4,28+16,47=3,5+16,47= 19,97.