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Solve |10x+15|>105

Guest Mar 6, 2017

Best Answer 

 #1
avatar+52 
+5

|10x+15|>105

        -15    -15

|10x|>90

/10    /10

x>9

FirstlLast19981998  Mar 6, 2017
 #1
avatar+52 
+5
Best Answer

|10x+15|>105

        -15    -15

|10x|>90

/10    /10

x>9

FirstlLast19981998  Mar 6, 2017
 #2
avatar+7155 
+6

What FirstLast said is true, x > 9.

Also, since it is the absolute value of 10x+15,

the other option is:

 

10x + 15 < -105

10x < -120

x < -12

 

x > 9     OR    x < -12

hectictar  Mar 6, 2017

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