Question

Решить систему: 2х+3у=4, 4х-6у=5

Answer 1

$left { {{2x+3y=4/*2} atop {4x-6y=5}} right. \ \ 4x+6y=8\4x-6y=5\ \ 8x=13 \ x=1.625 \ \ 2*1.625+3y=4 \ 3.25+3y=4\3y=0.75\y=0.25 \ left { {{x=1.625} atop {y=0.25}} right.$