Question

x+y= 1446 x-y= 48 me ajudem por favor

Answer 1

Resposta:

$\left \{ {{x+y=1446} \atop {x-y=48}} \right. \\\\x=1446-y\\\\1446-y-y=48\\1446-2y=48\\-2y=48-1446\\-2y=-1398 .(-1)\\2y=1398 : (2)\\y=699\\\\x=1446-y\\x=1446-699\\x=747\\(x,y) = (747,699)$