Question

Question number 13 it is urgent​

Answer 1

1. 2X+X=180

   3X=180

   X=180/3=60

2.6X+4X=180

   10X=180

   X=180/10=18

3.(X-9)+(5X+3)=180

  X-9+5X+3=180

   X+5X=180+9-3

   6X=186

    X=186/6=31