[tex]\equiv\fbox\blue{{Matematica}}\ \equiv[/tex]
[tex]\large{\green{\underline{\texttt{Ecuaciones}}}}[/tex]
[tex]\bf{\red{4x + 3y = 1}} = \:\bf{\blue{x = \frac{1 - 3y}{4} }}[/tex]
[tex]\bf{\red{3x - 2y = - 5}} = \: \bf{\blue{x = \frac{ - 5 + 2y}{3} }}[/tex]
