1.	Solve the equation -8 = a + (-3).
		A.	11	B.	-5
		C.	5	D.	-11
		Hint
	2.	The length of the Nile river is 4180 miles. That is 268 miles more than the Amazon river. If l is the length of the Amazon river, which equation represents this situation?
		A.	l + (-268) = 4180	B.	l = 4180 + 268
		C.	l - 268 = 4180	D.	l + 268 = 4180
		Hint
	3.	To model the equation x + (-3) = 6 using algebra tiles, which tiles should you use on the left side of the mat?
		A.	one yellow square tile and 3 red square tiles	B.	one green rectangular tile and 3 red square tiles
		C.	one red square tile and 3 yellow square tiles	D.	one green rectangular tile and 3 yellow square tiles
		Hint
	4.	Which equation does the model represent?
		A.	x + (-3) = -2	B.	x + 2 = 3
		C.	x + (-2) = -3	D.	x + 3 = 2
		Hint
	5.	Which equation does the model represent?
		A.	x + (-4) = 7	B.	x + 4 = -7
		C.	x + (-7) = 4	D.	x + 7 = -4
		Hint