use the gauss - jordan method to solve the system of equations

-25x-3y + 72 =0

10x +y - 29=0

select the correct choice below

a. the solution set is what?

b. the system has infinitely many solutions. The solution set is what? where y is any real number simplify the answer type an expression using y as the variable)

c. The solution is the empty set

2. use the gauss - jordan method to solve the system of equations

6x -3y =2

12x -6y =1

select the correct choice below

a. the solution set is what?

b. the system has infinitely many solutions. The solution set is what? where y is any real number simplify the answer type an expression using y as the variable)

c. The solution is the empty set

3. . use the gauss - jordan method to solve the system of equations

x+y -3z = -12

3x -3y + 2z =16

x + 3y -2z = -20

select the correct choice below

a. the solution set is what?

b. the system has infinitely many solutions. The solution set is what? where y is any real number simplify the answer type an expression using y as the variable)

c. The solution is the empty set

4. use the gauss - jordan method to solve the system of equations

x- 7y + 3z =1

2x -3y + 2z =-1

select the correct choice below

a. the solution set is what?

b. the system has infinitely many solutions. The solution set is what? where y is any real number simplify the answer type an expression using y as the variable)

c. The solution is the empty set