1.	Solve .
		A.	5, 1	B.	5, 2
		C.	2	D.	5
		Hint
	2.	Solve .
		A.	-6	B.	4
		C.	-10	D.	8
		Hint
	3.	Solve .
		A.	3	B.	2
		C.	1	D.	0
		Hint
	4.	Solve 4.
		A.	x 0	B.	x 8
		C.	0 x 8	D.	none of these
		Hint
	5.	Solve the equation = y.
		A.	3	B.	-3
		C.	3, 9	D.	None is correct.
		Hint