SOLUTION: The angles of a triangle are represented by 5x, (8x-1) and (12 x+6) in degrees. find the measure of the angles of the triangle. I need help and already tried to make an equation bu

Question 803547: The angles of a triangle are represented by 5x, (8x-1) and (12 x+6) in degrees. find the measure of the angles of the triangle. I need help and already tried to make an equation but it seems wrong. Can you please show me how to do this? Thank You.
Answer by waynest(281) (Show Source): You can put this solution on YOUR website!
1st angle = 5x
2nd angle = 8x - 1
3rd angle = 12x + 6
angles 1 + 2 + 3 = 180
5x + (8x - 1) + (12x + 6) = 180
5x + 8x + 12x - 1 + 6 = 180
25x + 5 = 180
25x + 5 - 5 = 180 - 5
25x = 175
25x/25 = 175/25
x = 7
1st angle = 5(7)
= 35 degrees
2nd angle = 8(7) - 1
= 56 - 1
= 55 degrees
3rd angle = 12(7) + 6
= 84 + 6
= 90
35 + 55 + 90 = 180
180 = 180
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