Question

   найди значение выражения a-8 если 

a=17
a=20
a=78                                                                              

Answer 1

1)а=17, а-8=17-8=9 2)а=20, 20-8=12, 3)а=78, 78-8=70

Answer 2

17-8=9
20-8=12
78-8=70