Scoobasteve
Scoobasteve
09-08-2018
Mathematics
contestada
|-9x|=81 please help
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suyog
suyog
09-08-2018
we have |-9x| =9x as it makes 9x positive
[tex]we \: know \: \\9x = 81 \\ x = 9[/tex]
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