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mathishard14
mathishard14 mathishard14
  • 05-01-2017
  • Mathematics
Answered

I need help I keep getting it wrong !!

I need help I keep getting it wrong !! class=

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R2infinity1 R2infinity1
  • 05-01-2017

18 greater than or equal z
You change the sign because the negative number becomes positive on the other side.

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apologiabiology
apologiabiology apologiabiology
  • 05-01-2017

add 5 to both sides
5+13≤z+5-5
18≤z+0
18≤z

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