Question

пожалуйста решите (5х+9)-(8х+14)=9

Answer 1

(5х+9)-(8х+14)=9
5х+9-8х-14=9
5х-8х=9-9+14
-3х=14
х=-14/3
х=-4 2/3

Answer 2

(5x+9)-(8x+14)=9
5x+9-8x-14=9
-3x=14

$\\ x= - \frac{14}{3} \\ x=-4 \frac{2}{3}$