Question

Se 7a= 10, entao a/2 vale

Answer 1

7a=10
a=10/7
a=1,42         Portanto=1.42/2
                                > =0.71

Answer 2

7a =10
a/2 =x
7ax =10a/2 simplifica 10 por 2= 5
7ax =5a
x= 5a/7a corta a com a
x =5/7