( 2 x + 5 ) * 3 = 15

Question

( 2 x + 5 ) * 3 = 15

Answer 1

(2х+5)*3=15,
6х+15=15,
6х=0,
х=0.
Ответ: 0.

Answer 2

6х+15=15
6х=0
х=0

Проверка
(2*0+5)*3=15
15=15