Answer:
X= 22
Explanation:
So all the angles in a triangle will have a sum of 180°
since you already have a 90° angle you can make the equation
2x+3x-20=90
you'll add the 2x and 3x to get 5x and then you'll also add 20 on both sides
20+90=110
the equation you'll then have is 5x=110
now you'll divide five from both sides and 110/5 is 22
Checked answer: 2(22)+ 3(22)-20= 90 and then youll add that 90 ° angle from before and youll get 180°