1.	Solve 5 - =
		A.	5	B.	15
		C.	-5	D.	-15
		Hint
	2.	An equation that is true for every value of the variable is called a(n) ______.
		A.	equivalency	B.	identity
		C.	representation	D.	empty set
		Hint
	3.	Solve the equation 7b + 3 = 5 + 7b.
		A.	0	B.	The equation is an identity, so it is true for all values of b.
		C.	The equation has no solution.	D.	2
		Hint
	4.	Solve the equation 4 – x = -x + 6.
		A.	no solution	B.	x = -5
		C.	x = 3	D.	x = 10
		Hint
	5.	Solve the equation y + 2 – 3y = 3 – 2y – 1.
		A.	y = -1	B.	no solution
		C.	y = 1	D.	identity
		Hint