Question

(270:y-18)×9=108
помогите

Answer 1

( 270: y-18)=12
270:y=30
y=270:30
y=9

Answer 2

(270÷у-18)=108÷9
(270÷у-18)=12
270÷у=12+18
270÷у=30
у=270÷30
у=9
(270÷9-18)×9=108