It is important to do the same thing to both sides of an equation because in the end, both sides will be equivalent, or equal, therefor making the problem true. If you didn't do the same thing on both sides of an equation, one side would be incorrect and not equal to the other side. Hope this helps! Please mark brainliest. Thank you v much! :)
Answer:
8
Step-by-step explanation:
The interior angles of a triangle always add up to 180°.
As QE=ED=QD
so, ∠Q=∠E=∠D=180°/3=60°
As, ∠D=5x+20
60=5x+20
5x=40
x=8
Hope, this helps you.
Answer:
Step-by-step explanation:
so whats the answer?
