1.
Solve 4
x
= 45 - 11
x
.
A.
3
B.
8.5
C.
-8.5
D.
-3
Hint
2.
Solve
k
=
k
-
.
A.
-
B.
2
C.
D.
-2
Hint
3.
Solve 75 - 9
h
= -20 + 10
h
.
A.
-5
B.
5
C.
55
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.
4
x
+ 8 = 3
x
+ 9; 1
B.
4
x
+ 8 = 3
x
+ 9; 3
C.
4
x
+ 9 = 3
x
+ 8; -1
D.
2
x
+ 4 = 3
x
+ 9; 5
Hint
5.
Write an equation to find the value of
x
so that each pair of polygons has the same area. Then solve.
A.
6
x
+ 18 = 10
x
- 2; 5
B.
6
x
+ 18 = 10
x
- 6; 6
C.
12
x
+ 36 = 10
x
- 6; 21
D.
6
x
+ 18 = 10
x
+ 6; 6
Hint