imconker375
imconker375 imconker375
  • 15-11-2018
  • Mathematics
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zhengmatthew919 zhengmatthew919
  • 15-11-2018

m∠U is 115°

Angle U is the same as angle W since they are opposite angles.

So 10x - 5 = 9x + 7. Now we isolate the x's and numbers

    -9x  +5   -9x +5

     x = 12

Then you plug is back into the equation. 10(12) - 5 = 115

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