Question

7-2a/6=1/2, atunci numarul a este egal cu....

Answer 1

$\frac{7-2a}{6} = \frac{1}{2}$ | amplificam 1/2 cu 3 
$\frac{7-2a}{6} = \frac{3}{6}$
Deci 7-2a=3
2a=7-3
2a=4
a=4:2
$a=2$