idontwanttodoapex
idontwanttodoapex idontwanttodoapex
  • 06-02-2017
  • Mathematics
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-5(4x+7) {less than to equal to symbol} 25

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crisforp
crisforp crisforp
  • 06-02-2017
-5(4x+7) <= 25;
-20x - 35 <= 25  / +35;
-20x <= 60  / 
÷ (-20 < 0);
x >= - 3;
x 
∈ [ - 3, +oo )
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