Помогите решить , 7,98:(2x-18)=19

Question

Помогите решить , 7,98:(2x-18)=19

Answer 1

7,98=19*(2x-18), 7,98=38x-342, 38x=342+7,98=349,98, x=349,98/38, x=9,21

Answer 2

2х-18 = 7.98/19
2x-18=0.42
2x=18+0.42
2x=18.42
x=9.21
проверка 7.98/ (2*9.21-18)=19
7.98/(18.42-18)=19
7.98/0.42=19