Answer:
7/3
Step-by-step explanation:
fb - fa / b - a
which is b=3,a=0
1/2 × 9 =
–4(5–2a)+3(a–4)=6(2–a)–5a
The answer is a=2:
Equation=
Open the parenthesis first:
-20+8a+3a-12=12-6a-5a
Add all the a's and the numbers together:
-32+11a=12-11a
Lastly put all a's on one side and the numbers on the other side:
22a=44
Divide the numbers and get:
a=2