Answer: x = 30
∠H = 75
∠I = 75
Step-by-step explanation:
Write out this equation for solving interior angles
The sum of all 3 angles will equal 180
(2x+15) + (3x-15) + 30 =180
2x + 3x +30 + 15 -15 = 180
2x + 3x + 30 = 180 ( subtract 15 from 15 )
2x + 3x + 30= 180
-30 -30 ( from both sides)
2x + 3x = 150
5x = 150
Divide
x=30
