Question

qual o valor de x na equacao 4sobre3x=2sobre 12

Answer 1

$\frac{4}{3x} = \frac{2}{12}$
6x = 48
x = 8

Answer 2

$\frac{4}{3x} = \frac{2}{12}\\\\ 2*3x = 4*12\\ x = \frac{48}{6} \\\ x= 8$