Question 429939
Solution:Let x degree angle A, then angle B=5x degree, and angle C=4x-3 degree.
Since the sum of angles of triangle is 180 degree, we write the equation:

 x+5x+4x-3=180 => 10x=183 => x=18.3

Answer:Angle A=18.3 degree, B=5X18.3=91.5 degree and C=4X18.3-3=70.2 degree.

Done.