Помогите решить 45-(104-(9n-12)х3+85)/9
=26
45-(104-(9n-12)*3+85):9=26 45-(104-(27n-36)+85):9=26 45-(104-27n+36+85):9=26 45-(225-27n):9=26 -(225-27n):9=26-45 -(225-27n):9=-19 -225+27n=-19*9 -225+27n=-171 27n=-171+225 27n=54 n=54:27 n=2