Question

104.9-( 11 x + 5x)=1.7

Answer 1

$104.9-( 11 x + 5x)=1.7$
$104.9-16x=1.7$
$-16x=1.7-104.9$
$-16x=-103.2$
$x=6.45$

Answer 2

104,9-(11х+5х)=1,7
104,9-16х=1,7
104,9-1,7=16х
103,2=16х
х=103,2:16
х=6,45