Question 271606
Hello, 
Let's have x represent angle A. Angle B will be 2x+3. And angle C will be 3x-15. 
We know there are 180 degrees in every triangle so we can set up the following equation:
x+(2x+3)+(3x-15)=180 Combine like terms to get:
6x-12=180 Add 12 to both sides and divide by 6 to get:
x=32
There we go the angle for A is 32 degrees.From the info above I'll let you figure out the other two angles.
RJ
There's a book I wrote that might help:
www.math-unlock.com