Question

calcule o valor das expressões numéricas ​

Answer 1

Resposta:

a)7/9 = 14/x

7.x = 9.14

7x = 126

x = 126/7

x = 18

b) 15/30 = x/2

30.x = 15.2

30x = 30

x = 30/30

x = 1

c) 6/18 = 1/x

6.x = 18.1

6x = 18

x = 18/6

x = 3