Question

determine a solução desse sistema
x-2y=3
2x-3y=5

Answer 1

$\left \{ {({x -2y =3} )*-2\atop {2x- 3y=5}} \right. \\ \left \{ {{-2x + 4y =-6} \atop {2x- 3y=5}} \right. \\ \left \{ {{0x + 1y =-1}\atop \right \\ y = -1 \\ \left \{ {({x -2y =3} )*-2\atop {}} \right. \\ \left \{ {{x -2*(-1) =3} \atop {}} \right. \\ \left \{ {{x + 2 =3} \atop {}} \right. \\ \left \{ {{x =1} \atop {}} \right.$