Answer:
infinite number of solutions
Explanation:
x - 2y = 1 ( add 2y to both sides )
x = 1 + 2y → (1)
3x - 6y = 3 → (2)
substitute x = 1 + 2y into (2)
3(1 + 2y) - 6y = 3 ← distribute parenthesis on left side and simplify
3 + 6y - 6y = 3 ( subtract 3 from both sides )
0 = 0 ← true statement
this indicates the system has an infinite number of solutions