Question

aflati nr x care verifica egalitatea 13+ 4*(2x:4-2)=25

Answer 1

$13+4*(2x:4-2)=25$
$4*(2x:4-2)=25-13$
$4*(2x:4-2)=12$
$2x:4-2=12:4$
$2x:4-2=3$
$2x:4=3+2$
$2x:4=5$
$2x=5*4$
$2x=20$
$x=20:2$
$x=10$