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Please do number 17 for me.
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7 votes
Please do number 17 for me.

Please do number 17 for me.-example-1
User Ben Curthoys
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1 Answer

9 votes
Angles in a triangle add to 180 degrees
3x+1+11x-4+5x-7=180
collect like terms
19x-10=180
Add ten to both sides
19x=190
x=10
User Miknash
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