1) x + 8*3 = 300x + 24 = 300x = 300 - 24x = 276
Проверка:276 + 8*3 = 276 + 24 = 300
2) x + 540/10 = 92x + 54 = 92x = 92 - 54x = 38
Проверка:38 + 540/10 = 38 + 54 = 92
3) 7x = 851 - 1517x = 700x = 700 / 7x = 100
Проверка:7*100 = 851 - 151700 = 700
4) 90/a = 600/1090/a = 60a = 90/60a = 1.5
Проверка:90/1.5 = 6060 = 60
Все уравнения решены верно.
1) x + 8*3 = 300
x + 24 = 300
x = 300 - 24
x = 276
Проверка:
276 + 8*3 = 276 + 24 = 300
2) x + 540/10 = 92
x + 54 = 92
x = 92 - 54
x = 38
Проверка:
38 + 540/10 = 38 + 54 = 92
3) 7x = 851 - 151
7x = 700
x = 700 / 7
x = 100
Проверка:
7*100 = 851 - 151
700 = 700
4) 90/a = 600/10
90/a = 60
a = 90/60
a = 1.5
Проверка:
90/1.5 = 60
60 = 60
Все уравнения решены верно.