Respuesta :
[tex] \bf{- x + 2y = 4}[/tex]
[tex]\bf{ - \: x + 2y - 4 = 0}[/tex]
[tex] \boxed{\bf{ \red{x - 2y + 4 = 0}}}[/tex]
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[tex] \bf{- 4y = 3}[/tex]
[tex]\bf{ - 4y \div ( - 4) = 3 \div ( - 4)}[/tex]
[tex] \boxed{\bf{ \red{y = - \frac{3}{4} }}}[/tex]
Explicación paso a paso: