Seudónimo Seudónimo
  • 22-02-2017
  • Mathematics
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Angles in a triangle: I did common like terms: 2x+190=180. I solved it and got -10. I checked my answer by changing x to -10. I solved it and got 180. or

Angles in a triangle I did common like terms 2x190180 I solved it and got 10 I checked my answer by changing x to 10 I solved it and got 180 or class=

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trishinada63
trishinada63 trishinada63
  • 22-02-2017
That's correct. Now you gotta plug in -5 in for x and get both angles.
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tisinger8646
tisinger8646 tisinger8646
  • 22-02-2017
Minus 180 from 190. You have -10
2x= -10
Which means x equals -5
Answer Link

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