Solve for x and y

X=1/6y
Y=x-5

sub the first into the second

y = x - 5
y = (1/6)y - 5
multiply each term by 6 to get rid of fractions
6y = y - 30
5y = 30
y = 6

back into the 1st:
x = (1/6)y
= (1/6)(6) = 1

so x=1, y =6