How would i solve |2x+9|<5

x=7

1 Add

9

9 to both sides.

2

x

=

5

+

9

2x=5+9

2 Simplify  

5

+

9

5+9  to  

14

14.

2

x

=

14

2x=14

3 Divide both sides by

2

2.

x

=

14

2

x=

2

14

​

4 Simplify  

14

2

2

14

​

  to  

7

7.

x

=

7

x=7

x<-2 or x>-7

Step-by-step explanation:

abs(2x+9)<5

2x+9<5

2x<5-9

2x<-4

x<-4/2

x<-2

2x+9>-5

2x>-5-9

2x>-14

x>-14/2

x>-7

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54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m