Question

5y-x=6 3x-4y=4

Answer 1

$5y-x=6\3x-4y=4\ \-x+5y=6/*3\3x-4y=4\\-3x+15y=18\3x-4y=4\11y=22\y=22:11$

$\y=2\ \10-x=6\x=10-6\x=4 \ \ left { {{y=2} atop {x=4}} right.$

Answer 2

5y-x=6⇒x=5y-6
3x-4y=4
15y-18-4y=4
11y=4+18
11y=22
y=22/11=2
x=5*2-6
x=10-6
x=4
(4;2)