boogieA2006
boogieA2006 boogieA2006
  • 19-09-2021
  • Mathematics
contestada

I need help with my Math please!!

I need help with my Math please class=

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alisashatravka
alisashatravka alisashatravka
  • 19-09-2021
X+6=4x-21

X-4x=-21-6

-3x=-27

X=9

CD = 9+6=15
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