Answer:
Explanation:
Sum of 3 angles of a triangle= 180
3x-2+x+11+4x+3= 180
Separate x terms from constants
3x+x+4x-2+11+3= 180
8x+12= 180
8x= 180-12
8x= 168
x= 168/8
x= 21
Put the value of x in angles:
3x-2=3(21)-2= 63-2= 61
x+11= 21+11= 32
4x+3= 4(21)+3= 84+3= 87
If you want to check whether your answer is right or wrong, you can cross-check by adding the 3 angles
61+32+87= 180.
Hope this will help :)