1) x÷5 = 10x = 5*10x = 50
2) 10x÷7 = 62810x = 7*62810x = 4396x = 439.6
3) 287 = 2x = 289
4) 2 = 7x - 157x = 17x = 17/7
5) 48 = 7x = 41
Проверим, проанализировав эти уравнения.
1) x÷5 = 10
x = 5*10
x = 50
2) 10x÷7 = 628
10x = 7*628
10x = 4396
x = 439.6
3) 287 = 2
x = 289
4) 2 = 7x - 15
7x = 17
x = 17/7
5) 48 = 7
x = 41
Проверим, проанализировав эти уравнения.