Please do number 17 for me.

asked Mar 3, 2022 14.6k views

7 votes

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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

Miknash answered Mar 8, 2022

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