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Veseljchak [2.6K]
3 years ago
7

Delta Math: Angle Terminology with Equations

Mathematics
2 answers:
Gre4nikov [31]3 years ago
8 0

Vertical angles are equal

  • 3x-30=2x-9
  • 3x-2x=-9+30
  • x=21

Done!

sweet [91]3 years ago
7 0

3x-30=2x-9\\\\\implies 3x -2x = -9 +30\\\\\implies x =  21

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