Question

Решите уравнение 132-(x-5)*9=69

Answer 1

132-(х-5)*9=69
132-9x+45=69
-9x=-108x=12

Answer 2

132-(х-5)*9=69
132-(9х-45)=69
132-9х+45=69
-9х=69-132-45
-9х=-108
х=108:9
х=12
Проверяем
132-(12-5)*9=132-63=69