1.
Solve
k
=
k
-
.
A.
B.
-2
C.
2
D.
-
Hint
2.
Solve 6 -
m
= 5
m
+ 30.
A.
-7
B.
4
C.
-4
D.
7
Hint
3.
Solve 75 - 9
h
= -20 + 10
h
.
A.
55
B.
5
C.
-5
D.
-55
Hint
4.
Write an equation to find the value of
x
so that each pair of polygons has the same perimeter. Then solve.
A.
2
x
+ 4 = 3
x
+ 9; 5
B.
4
x
+ 8 = 3
x
+ 9; 3
C.
4
x
+ 9 = 3
x
+ 8; -1
D.
4
x
+ 8 = 3
x
+ 9; 1
Hint
5.
Write an equation to find the value of
x
so that each pair of polygons has the same area. Then solve.
A.
12
x
+ 36 = 10
x
- 6; 21
B.
6
x
+ 18 = 10
x
+ 6; 6
C.
6
x
+ 18 = 10
x
- 6; 6
D.
6
x
+ 18 = 10
x
- 2; 5
Hint