Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
we know that
EB=ED+DB
ED=DB -----> given problem
Substitute the given values and solve for x




<em>Find the value of ED</em>

substitute the value of x

<em>Find the value of DB</em>
Remember that
ED=DB
therefore

<em>Find the value of EB</em>
EB=ED+DB

50 because 80+50+x=180 (inside triangle) x=130 180-130= 50 (angle outside triangle)
Answer:
ax + b= ax + b
Step-by-step explanation:
Infinite many solutions when both sides are equal
so
ax + b= ax + b