Answer :
16x-10y=10
-18x-6y=6
either get x or y as opposites
48x-30y=30
90x+30y=-30
eliminate
138x=0
x=0
sub x in either equation
0-10y=-10 or 0-6y=6
y=1
-18x-6y=6
either get x or y as opposites
48x-30y=30
90x+30y=-30
eliminate
138x=0
x=0
sub x in either equation
0-10y=-10 or 0-6y=6
y=1
