Question

{6x+5y=1 {2x-3y=33

Answer 1

$6x+5y=1 \ 2x-3y=33/*(-3) \ \ 6x+5y=1 \ -6x+9y=-99 \ 14y=-98\y=-98:14\y=-7 \ \ 6x-35=1 \ 6x=1+35 \ 6x=36 \ x=6 \ left { {{y=-7} atop {x=6}} right.$

Answer 2

6x+5y=1
2x-3y=33/*3⇒6x-9y=99
отнимем
14y=-98
y=-98/14=-7
2x+21=33
2x=33-21
2x=12
x=12/2=6
(6;-7)