`(45,8-y)xx2,8=46,06`
`=>45,8-y=46,06:2,8`
`=>45,8-y=16,45`
`=>y=45,8-16,45`
`=>y=29,35`
`(45,8-y)xx2,8=46,06`
`=> 45,8-y=46,06:2,8`
`=> 45,8-y=16,45`
`=> y= 45,8 -16,45`
`=>y=29,35`
(45,8 - y) x 2,8 = 46,06
⇒128,24 - 2,8y = 46,06
⇒ 2,8y = 128,24 - 46,06y
⇒ 2,8y = 82,18
⇒ y = 82,18 : 2,8
⇒ y = 29,35
\(\left(45,8-y\right)\times2,8=46,06\\ \rightarrow45,8-y=46,06:2,8\\ \rightarrow45,8-y=16,45\\ \rightarrow y=45,8-16,45\\ \rightarrow y=29,35\)
\(\left(45,8-y\right)\times2,8=46,06\\ \rightarrow45,8-y=46,06:2,8\\ \rightarrow45,8-y=16,45\\ \rightarrow y=45,8-16,45\\ \rightarrow y=29,35\)