Question

( )4
( )5
( )60/23
( )60/7
( )68/23

Answer 1

Resposta:

60/7

Explicação passo a passo:

$\frac{3}{x} + \frac{2}{5} = \frac{3}{4}$

$\frac{3}{x} = \frac{3}{4} - \frac{2}{5}$

$\frac{3}{x} = \frac{15 - 8}{20}$

$\frac{3}{x} = \frac{7}{20}$

7x = 3.20

x = 60/7