(х+15)•8=96 решите пжл

Question

(х+15)•8=96 решите пжл

Answer 1

8х+120-21х-12=96
-13х=96-120+12
-13х=-12
х=-12/(-13)
х=12/13

Answer 2

8х+120=96
8х=96-120
8х=-24
х=-3