Question

x+y=95 3x=2y, розв'язати систему рівнянь

Answer 1

$\left \{ {{x+y=95} \atop {3x=2y}} \right.\\\\\left \{ {{y=1,5x} \atop {x+1,5x=95}} \right.\\\\\left \{ {{y=1,5x} \atop {2,5x=95}} \right.\\\\\left \{ {{y=1,5x} \atop {x=38}} \right.\\\\\left \{ {{x=38} \atop {y=1,5*38}} \right.\\\\\left \{ {{x=38} \atop {y=57}} \right.\\\\Otvet:\boxed{(38;57)}$