Question

find the answer for this

Answer 1

90-(3x+20)=5x-8=>70 -3x=5x-8=>78=8x=>x=9.75°.
Since the sum of angles at p =90°.

Answer 2

Since the two lines are parallel, the two interior angles add up to 180:

⇒ (3x + 20) + (5x - 8) = 180

Solve for x:

(3x + 20) + (5x - 8) = 180

3x + 20 + 5x - 8 = 180

8x + 12 = 180

8x = 168

x = 21

Answer: x = 21