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

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