Question

Решите систему уравнений: x+2y=3
{
2x=2y+6

Answer 1

$left { {{x+2y=3} atop {2x=2y+6}} right. left { {{x+2y=3} atop {2x-2y=6}} right. \3x=9\x=3\3+2y=3\2y=0\y=0\(x_1;y_1)=(3;0)$