## Precalculus (6th Edition)

$\{(48,8)\}$
1. The second equation has x already expressed in terms of y $x=6y$ 2. Substitute $x$ in the other equation and solve. $x-5y=8$ $(6y)-5y=8$ $y=8$ 3. Back-substitute into the expression of $x$ (step 1). $x=6(8)=48$ 4. Write the solution as an ordered pair. Solution set: $\{(48,8)\}$