Question

calcule mentalmente o valor de x​

Answer 1

a) 9 . x = 3.3

9x = 9

x = 1

b) 2.24 = x.6

6x = 48

x = 48/6

= 8

c) 3.x = 6.5

3x = 30

x = 30/3

x = 10

d) 5 x 0,8 = x.1

x = 4