Question

método de reduccion
2x +2y 40
2.5x-Y = 22​

Answer 1

Respuesta:

   $x=12\\y=8$

Explicación paso a paso:

$2x+2y=40\\2.5x-y=22$

$2x+2y=40\\2(2.5x-y)=2(22)\\\\2x+2y=40\\5x-2y=44\\\\7x=84\\\\x=\frac{84}{7}\\\\x=12$                                 $2x+2y=40\\\\2(12)+2y=40\\\\24+2y=40\\\\2y=40-24\\\\y=\frac{16}{2}\\\\y=8$