Are you solving?
if so, then this is ideal for substitution.
From the first: x = 2y + 5
sub that into the second,
3(2y+5) - 5y = 8
6y + 15 - 5y = 8
y = -7
then x = -9 , (should be able to get that mentally)
x-2y=5
3x-5y=8
1 answer