Find the initial point of the vector that is equivalent to vector u = (1,2) and whose terminal point is a(2,0)

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?

What is the solution to the system of equations? y=1.5-3 y=-x

Reading tests are compared for two students. sara got 98, 100, 65, 78, 98, 46, 100, 100, 45, and 50 on her reading test. lee got 97, 67, 89, 99, 100, 45, 79, 89, 58, and 67 on his reading test.