Question

Срочно макс количество даллов
Все

Answer 1

1) x - 1 = 3
x = 4

2) 5x = 10
x = 10 : 5
x = 2

3) 6²ˣ⁻¹ = 6³
2x-1 = 3
2x = 4
x = 2