Question

17х-х+5х-19=170 помогите

Answer 1

(17-1+5)х = 170+19
21х = 189
х = 9

Answer 2

$17x-x+5x-19=170$
$21x-19=170$
$21x=189$
$x=189:21$
$x=9$
$Otvet:9$