For the system of linear equations $$\begin{array}{cc}3x-5y=3& \\ 9x-8y=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}9x-5y=3& \\ 9x-8y=-12& \end{array}$$
	(b)	$$\begin{array}{cc}3(3x-5y)=3(3)& \\ 9x-8y=-12& \end{array}$$
	(c)	$$\begin{array}{cc}3(3x-5y)=3& \\ 9x-8y=-12& \end{array}$$
	(d)	$$\begin{array}{cc}3x-5y=-12& \\ 9x-8y=-12& \end{array}$$
	(e)	$$\begin{array}{cc}3x-5y=12& \\ 9x-8y=-12& \end{array}$$

For the system of linear equations $$\begin{array}{cc}3(3x-5y)=3(3)& \\ 9x-8y=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}9x-5y=9& \\ 9x-8y=-12& \end{array}$$
	(b)	$$\begin{array}{cc}9x-15y=3& \\ 9x-8y=-12& \end{array}$$
	(c)	$$\begin{array}{cc}9x-15y=9& \\ 9x-8y=-12& \end{array}$$
	(d)	$$\begin{array}{cc}9x+15y=9& \\ 9x-8y=-12& \end{array}$$

For the system of linear equations $$\begin{array}{cc}9x-15y=9& \\ 9x-8y=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}18x-15y=-3& \\ 9x-8y=-12& \end{array}$$
	(b)	$$\begin{array}{cc}(9x-15y)-(9x-8y)=9-(-12)& \\ 9x-8y=-12& \end{array}$$
	(c)	$$\begin{array}{cc}(9x-15y)-(9x-8y)=9& \\ 9x-8y=-12& \end{array}$$
	(d)	$$\begin{array}{cc}(9x-15y)-(9x-8y)=-12& \\ 9x-8y=-12& \end{array}$$

For the system of linear equations $$\begin{array}{cc}(9x-15y)-(9x-8y)=9-(-12)& \\ 9x-8y=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}18x-15y=-3& \\ 9x-8y=-12& \end{array}$$
	(b)	$$\begin{array}{cc}-23y=3& \\ 9x-8y=-12& \end{array}$$
	(c)	$$\begin{array}{cc}-7y=3& \\ 9x-8y=-12& \end{array}$$
	(d)	$$\begin{array}{cc}-7y=21& \\ 9x-8y=-12& \end{array}$$

For the linear equation $$\begin{array}{cc}-7y=21& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}-7=21& \end{array}$$
	(b)	$$\begin{array}{cc}y=-147& \end{array}$$
	(c)	$$\begin{array}{cc}y=-3& \end{array}$$
	(d)	$$\begin{array}{cc}y=3& \end{array}$$

For the system of linear equations $$\begin{array}{cc}y=-3& \\ 9x-8y=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}9x-24=-12& \end{array}$$
	(b)	$$\begin{array}{cc}9x+24=-12& \end{array}$$
	(c)	$$\begin{array}{cc}9x+24=-24& \end{array}$$
	(d)	$$\begin{array}{cc}9x-24=24& \end{array}$$

For the linear equation $$\begin{array}{cc}9x+24=-12& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}9x=12& \end{array}$$
	(b)	$$\begin{array}{cc}9x=-36& \end{array}$$
	(c)	$$\begin{array}{cc}9x=36& \end{array}$$
	(d)	$$\begin{array}{cc}9x=-12& \end{array}$$

For the linear equation $$\begin{array}{cc}9x=-36& \end{array}$$ which of the following deductions is correct?

	(a)	$$\begin{array}{cc}x=-324& \end{array}$$
	(b)	$$\begin{array}{cc}x=-3& \end{array}$$
	(c)	$$\begin{array}{cc}x=-45& \end{array}$$
	(d)	$$\begin{array}{cc}x=-4& \end{array}$$

For the system of linear equations $$\begin{array}{cc}y=3& \\ x=-4& \end{array}$$ which of the following deductions is correct?

	(a)	POI $(-3,-4)$
	(b)	POI $(3,-4)$
	(c)	POI $(-4,3)$
	(d)	POI $(-4,-3)$