Two simultaneous equations are given as 2x + y = 5 and 3x + y = 7. Find the value of x and y.
Select the Correct Answer:
x = 1, y = 2
x = 2, y = -1
x = 2, y = 1
Correct Choice:
x = 2, y = 1
Simultaneous equations can be solved in many different ways. In this case, the only difference between the two equations is one x (2x and 3x), This has increased the value by 2. Therefore, x = 2. Substituting this into either equation gives y = 1.
