Answer:
y=4/3
Step-by-step explanation:
Segment addition postulate
Substitution
Distribution Property of Equality
Simplification, or Adding like terms
Subtraction property
Division Property
Answer:

Explanation:
Group Like Terms:
= 
Combine Similar Elements: 
= 
Combine Similar Elements: 
= 
////// Mordancy \\
Answer:
x = 45
Step-by-step explanation:
Given
= 9
Multiply both sides by 5
x = 5 × 9 = 45