Question

реши уравнения 5*х-30=105

Answer 1

5х-30=105
5х=105+30
5х=135
х=135:5
х=27
Проверка:
5·27-30=135-30=105

Answer 2

$5x = 105 + 30 \\ 5x = 135 \\ x = 135 \div 5 \\ x = 27|$