Question

solve the absolute value of e qualities and ineequality
3x+4 >20

Answer 1

Answer:

Explanation:

Removing the abs the equation became:

−

20

<

3

x

−

4

<

20

This is equivalent to the follow system:

∴

{

(

3

x

−

4

)

>

−

20

(

3

x

−

4

)

<

20

{

3

x

>

−

20

+

4

3

x

<

20

+

4

{

3

x

>

−

16

3

x

<

24

{

x

>

−

16

3

x

<

8

x

interval where both the lines are continuos:

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∴

x

∈

(

−

16

3

,

8

)

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