Question

Calcule x em cada igualdade abaixo:

a) x/6 = 18/48

b) 7/x = 4/3

c) 3/5 = 9/4x

d) 3/8 = x-1 /2

Answer 1

a) x/6 = 18/48

48x = 108

x = 108/48

x = 2,25

b) 7/x = 4/3

4x = 21

x = 21/4

x = 5,25

c) 3/5 = 9/4x

12x = 45

x = 45/12

x = 3,75

d) 3/8 = x-1 /2

8x - 8 = 6

8x = 14

x = 14/8

x = 1,75