1.
The sum of three times a number and 12 is at least -3 and at most 15. Find the solution set for this number.
A.
{
x
| -5 <
x
<
1}
B.
{
x
| -5 <
x
< 1}
C.
{
x
|
x
<
-5 or
x
>
1}
D.
{
x
| -5
<
x
<
1}
Hint
2.
Solve –10 < 2
x
– 8 < 8.
A.
{
x
| -9 <
x
< 8}
B.
{
x
| -1 <
x
< 8}
C.
{
x
| -9 <
x
< 0}
D.
{
x
| -1 < x < 6}
Hint
3.
Solve
A.
B.
C.
D.
Hint
4.
Solve –4 < -5
x
– 9 < 11.
A.
{
x
| -1 <
x
< 4}
B.
{
x
| -4 <
x
< -1}
C.
{
x
| -1 <
x
< 1}
D.
{
x
| -4 <
x
< 1}
Hint
5.
Solve
or
A.
{
x
|
x
< 15}
B.
{
x
|
x
> 15}
C.
{
x
|
x
> 12}
D.
{
x
|
x
< 12}
Hint