Question

solve system. {2x-y=3 {7x+2y=16

Answer 1

$left { {{2x-y=3} atop {7x+2y=16}} right. \ left { {{-y=3-2x} atop {7x+2y=16}} right. \ left { {{y=2x-3} atop {7x+2(2x-3)=16}} right. \ left { {{y=2x-3} atop {7x+4x-6=16}} right. \ left { {{y=2x-3} atop {7x+4x=16-6}} right. \ left { {{y=2x-3} atop {7x+4x=16+6}} right. \ left { {{y=2x-3} atop {11x=22}} right. \ left { {{y=2x-3} atop {x= frac{22}{11} }} right. \ left { {{y=2x-3} atop {x= 2}} right. \ left { {{y=2*2-3} atop {x= 2}} right.$
$left { {{y=4-3} atop {x= 2}} right. \ left { {{y=1} atop {x= 2}} right. \ \ \ x=2~~y=1$