Question

Решите систему уравнений {х+2у=5, х/4+(у+6)/3=3

Answer 1

$left { {{x+2y = 5} atop { frac{x}{4} + frac{y+6}{3} = 3 }} right.$
$left { {{x = 5 - 2y} atop {3x+ 4y+24 = 36 }} right.$
$left { {{x = 5 - 2y} atop {3(5-2y)+ 4y+24 = 36 }} right.$
$left { {{x = 5 - 2y} atop {15-2y+24 = 36 }} right.$
$left { {{x = 5 - 2y} atop {y = 1,5 }} right.$
x = 5 - 2 * 1,5 = 2.