Question

Решите уравнение
2x−3=x2−13.
Укажите в ответе, чему равно 9x.

Answer 1

2x - 3 = x/2 - 1/3 | *6

12x - 18 = 3x - 2

12x - 3x = 18 - 2

9x = 16

x = 16/9

Answer 2

2x - 3 = x/2 - 1/3 | •6

12x - 18 = 3x - 2

12x - 3x = 18 - 2

9x = 16

x = 16/9