Question

решите показательное уравнение 7x+2+4•7x+1=539​

Answer 1

7x+2+4•7x+1=539
7х + 28х = 539 - 2 - 1
35х = 539 - 3
35х = 536
х = 536 : 35
х = 15 11/35

Answer 2

Проверка:
7•536/35 + 2 + 4•7•536/36+ 1 =
= 536/5 + 4•536/5 + 3 = 5•536/5 + 3 =
= 536 + 3 = 539