1.
What is the solution of 2.5
a
+ 12 = 5
a
?
A.
2.5
B.
4.8
C.
24
D.
30
Hint
2.
Solve 7
c
+ 10 = 17
c
.
A.
c
= 1
B.
C.
D.
c
= -1
Hint
3.
Solve 14
b
– 22 = 11
b
.
A.
B.
C.
D.
Hint
4.
Solve 6
x
– 12 = 5
x
+ 2.
A.
x
= -14
B.
x
= 10
C.
x
= -10
D.
x
= 14
Hint
5.
Solve 7.9
q
+ 1.4 = -1.1
q
– 3.1.
A.
q
= -0.5
B.
q
= 0.25
C.
q
= 0.5
D.
q
= -0.25
Hint