Question

X +15y = 31
X - 2y = -3

Answer 1

Aquí te dejo mi respuesta:

$\left \{ {{x+15y=31} \atop {x-2y=-3}} \right.$

x + 15y = 31, x − 2y = −3

x + 15y = 31

x = −15y + 31

−15y + 31 − 2y = −3

−17y + 31 = −3

−17y = −34

y = 2

x = −15 × 2 + 31

x = −30 + 31

x = 1

x = 1, y = 2

Espero haberte ayudado :D