Question

решите уравнение 7,8-х=9,3

Answer 1

$7.8 - x = 9.3 \\ x = 7.8 - 9.3 \\ x = - 1.5$

Answer 2

7.8-х=9.3
х=7.8-9.3
х=-1.5
Ответ: x=-1.5