Answer: x=5
Step-by-step explanation:
ABC=ABD+CBD
ABD=CBD ==> Because they're formed from a bisecting line, meaning the angle ABC is divided into two equal angles.
5x-10=2x+5
3x-10=5
3x=15
x=5

In mathematics, the distributive property of binary operations generalizes the distributive law from elementary algebra, which asserts that one has always {\displaystyle x\cdot =x\cdot y+x\cdot z.} For example, one has 2 ⋅ = +. One says that multiplication distributes over addition.

Answer:
___y=(2x+5(x+4)____
2
Step-by-step explanation:
Hope this helps !