Question

Verifique cada solução desses pares ordenados ou na solução do sistema {3x-2y=14, 5x+3y=17}

Answer 1

$\left \{ {{3x-2y=14} \atop {5x+3y=17}} \right. \\ \left \{ {{3x-2y=14} =\ \textgreater \ *(3)\atop {5x+3y=17}=\ \textgreater \ *(2)} \right. \\ \left \{ {{9x-6y=42} \atop {10x+6y=34}} \right. \\\\ 9x+10x-6y+6y=42+34\\ 19x=76\\ x= \frac{76}{19}\\ \\ x=4\\ 3x-2y=14\\ 3*4-2y=14\\ 12-2y=14\\ -2y=14-12\\ -2y=2$

$-2y=2\\ y= \frac{-2}{2} \\ y=-1$