Question

Решите систему способом постановки
2х+6у=28 х-5у=6

Answer 1

$left { {2x+6y=28} atop {x-5y=6}} right. \\ left { {2x+6y=28} atop {x=5y + 6}} right. \\ left { {10y + 12 +6y=28} atop {x=5y+6}} right. \\ left { {16y=16} atop {x=5y+6}} right. \\ left { {y=1} atop {x=5y+6}} right. \\ left { {y=1} atop {x=5+6}} right. \\ left { {y=1} atop {x=11}} right.$