Question

Sa se afle nr. natural x pentru care
$\frac{7x-3}{12}$ = 3 × $\frac{1}{4}$

Va rog ajutor, urgent!

Answer 1

$\frac{7x-3}{12} = \frac{3*4+1}{4}$
$\frac{7x-3}{12} = \frac{13}{4}$
7x-3=$\frac{12*13}{4} =3*13=39$
7x=39+3
7x=42
x=42/7
x=6