Respuesta :

DᴀʀᴋPᴀʀᴀᴅᴏx

[tex]\large \mathfrak{Solution : }[/tex]

let's solve for y :

  • [tex]2(4y + 5y)[/tex]

  • [tex]2(9y)[/tex]

  • [tex]18y[/tex]

  • [tex]18 \times 1 \: \: \: \: \: (since, \: \: y = 1)[/tex]

  • [tex]18[/tex]

therefore, the value of above expression is 18 .