Question

(х+19,64)*0,18=144 Помогите умоляю

Answer 1

(х+19,64)*0,18=144 
(х+19,64)=144:0,18
х+19,64=800
х=800-19,64
х=780,36

Answer 2

Х*0,18 + 19,64*0,18=144
0,18х+3,5352=144
0,18х=144-3,5352
0,18х=140,4648
х=140,4648 : 0,18
х=780,36