Sat Solving Systems of Equations

What are the correct methods for solving systems of equations? Check all that apply.

Solve for x and y.
y = 2/3x - 2
y = -x + 3

Solve for x and y
3x + 2y = 16
7x + y = 19

Solve for x and y
y = 2x + 1
y = 4x - 1

What is the solution?

What is the value of the y-coordinate of the solution to the system of equations 
x-2y=1
x+4y=7 

What is the solution to the system?

The equations of two lines are:
 2x-y=4 and y=-2x+8.
What is the value of x in the solution for this system?

If a system of equations has no solution, what does the graph look like? 

Solve for x and y
2x − 3y = −1
 y = x − 1