Answer:
C
Step-by-step explanation:
[tex]\frac{4(3(3a + b)-(5a-b)}{12}[/tex] ← cancel 4 and 12 on numerator/ denominator
= [tex]\frac{3(3a+b) -(5a-b)}{3}[/tex] ← distribute parenthesis on numerator
= [tex]\frac{9a+3b-5a+b}{3}[/tex]
= [tex]\frac{4a+4b}{3}[/tex] ← factor out 4 on numerator
= [tex]\frac{4(a+b)}{3}[/tex]
= [tex]\frac{4}{3}[/tex] (a + b)
Then
X = [tex]\frac{4}{3}[/tex]
