Ilovedavid123456 Ilovedavid123456
  • 17-02-2014
  • Mathematics
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Can someone help me plz I'm confused

Can someone help me plz Im confused class=

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crisforp
crisforp crisforp
  • 17-02-2014
9. 

2x+3+x+9 = 180 => 3x = 168 => x = 56;
m(<ABD) = 2*56 + 3 = 115.
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