Question

Help wanted!! Please help if you can!

Find the value of x in the image below:​

Answer 1

x = 7

Explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

(19x + 3)° is an exterior angle of the triangle , then

19x + 3 = 9x + 16 + 6x + 15 ( simplify right side )

19x + 3 = 15x + 31 ( subtract 15x from both sides )

4x + 3 = 31 ( subtract 3 from both sides )

4x = 28 ( divide both sides by 4 )

x = 7