Question

x= 4a+2-b-7,para a= 5 e b= 7.

A)20
B)22
C)32
D)30

Answer 1

x =  4a + 2 - b - 7, para a = 5 e b = 7

x = 4.5 + 2 - 7 - 7

x = 20 + 2 - 14

x = 22 - 14

x = 8

Answer 2

para a= 5 e b= 7.

x= 4a+2-b-7

x= 4.5+2-7-7

x= 20+2-14

x= 22 -14

x= 8