Ashleyburnett81
contestada

write an equation to solve for x. what is the value of x none of this makes any sense to me at all so if y'all get it right amen will mark brainiest this is so hard ty so much​

write an equation to solve for x what is the value of x none of this makes any sense to me at all so if yall get it right amen will mark brainiest this is so ha class=

Respuesta :

ricchad

Answer:

equation: 3x - 2 + 4x - 9 + 3x - 9 = 180

x = 20

Step-by-step explanation:

add all internal angles

∠H + ∠I + ∠J = 180

equation: 3x - 2 + 4x - 9 + 3x - 9 = 180

combine similar terms: 3x + 3x + 4x = 180 + 2 + 9 + 9

simplify: 10x = 200

divide 10 both sides: x = 20
X=20 I hope this helps