1.
Solve
A.
19
B.
C.
13
D.
Hint
2.
Find the value of
r
in the following equation.
2 + 6
r
= 3
r
- 1
A.
-1
B.
6
C.
D.
2
Hint
3.
What is the solution of 2.5
a
+ 12 = 5
a
?
A.
30
B.
2.5
C.
4.8
D.
24
Hint
4.
Solve 7
c
+ 10 = 17
c
.
A.
B.
c
= 1
C.
c
= -1
D.
Hint
5.
Solve 6
x
– 12 = 5
x
+ 2.
A.
x
= -10
B.
x
= 14
C.
x
= 10
D.
x
= -14
Hint