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Help.

 Jan 11, 2018
 #1
avatar+101871 
+2

5x + 11 ≥  -9     subtract 11 to both sides    

 

5x ≥ -20       divide both sides by 5

 

x ≥ -4

 

 

10x  - 3  ≤  27     add 3 to both sides

 

10x ≤ 30      divide both sides by 10

 

x ≤  3

 

 

l  3x  +  1   l   =  1

 

We have two equations

 

3x +  1    =   1                                       3x  +  1   =   -1

            

                    subtract 1 from both sides

 

3x   =   0                                               3x  =  - 2

 

                   divide both sides by  3

 

x =  0                                                  x  =  -2 / 3

 

 

 

cool cool cool

 Jan 11, 2018

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