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