Question

решите систему уравнений: 3у-2х=10 ;  7х+5у=27

Answer 1

$left { {{3y-2x=10} atop {7x+5y=27}} right. left { {{10.5y-7x=35} atop {7x+5y=27}} right. left { {{15.5y=62} atop {7x+5y=27}} right. left { {{y=4} atop {7x+20=27}} right. left { {{y=4} atop {7x=7}} right. left { {{y=4} atop {x=1}} right.$