Question

(270:y-2)•30=7•120 решите плиз!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

(270:y-2)•30=7•120
(270:у-2)*30=840
270:у-2=840:30
270:у-2=28
270:у=28+2
270:у=30
у=270:30
у=9
Ответ:9