From the eq. (ii) ,
[tex] \sf - 3x - 2y = 10 \: \: ..........(iii)[/tex]
(i) + (iii)
[tex] \sf5x + 2y = 12[/tex]
[tex] \sf - 3x - 2y = 10[/tex]
[tex] \sf2x = 22[/tex]
[tex]⇒ \sf \: x = 11[/tex]
[tex] \sf \: Hence, \: the \: value \: of \: x \: is \: 11 [/tex]