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.
representation
B.
empty set
C.
equivalency
D.
identity
Hint
3.
Solve the equation
y
= -3
y
+ 4.
A.
y
= -2
B.
identity
C.
y
= 16
D.
y
= 1
Hint
4.
Solve the equation
b
+ 3 =
b
.
A.
b
= -1
B.
b
= 5
C.
no solution
D.
b
= -9
Hint
5.
Solve the equation
y
+ 2 – 3
y
= 3 – 2
y
– 1.
A.
y
= 1
B.
identity
C.
no solution
D.
y
= -1
Hint