[tex]{3(x - 5) + 11 = 2y + 17[/tex]
[tex]{5x + 2(y - 3) = 30 - x[/tex]
[tex] = > [/tex]
{Y=
[tex] - \frac{21}{2} + \frac{3}{2} x[/tex]
[tex]{5x + 2(y - 3) = 30 - x[/tex]
[tex] = > [/tex]
[tex]5x + 2( - \frac{21}{2} + \frac{3}{2} x - 3) = 30 - x = > [/tex]
[tex]x = \frac{19}{3} [/tex]
[tex]y = - \frac{21}{2} + \frac{3}{2} \times \frac{19}{3} = > [/tex]
[tex]y = - 1[/tex]
[tex] = > [/tex]
[tex](x.y) = ( \frac{19}{3} . - 1)[/tex]
Sa faci o acoladă mare in fața celor 2 ecuații pt că e sistem