Решите (3х*3+123)/12=145

Question

Решите (3х*3+123)/12=145

Answer 1

(3х*3+123)/12=145
(9х+123)=145*12
9х+123=1740
9х=1740-123
9х=1617
х=179,7
(3*179,7*3+123)/12=145
(1617,3+123)/12=145
1740,3/12=145
145=145