Answer:
infinite number of solutions
Explanation:
y = x - 8 → (1)
2x - 2y = 16 → (2)
substitute y = x - 8 into (2)
2x - 2(x - 8) = 16
2x - 2x + 16 = 16 ( subtract 16 from both sides )
0 = 0 ← true statement
this true statement indicates the system has an infinite number of solutions