Answer:
x=8
Step-by-step explanation:
2x+9=3x+1
-3 -3
-9 -9
-1x=-8
divide both side by -1.
x=8
The domain of a function is the set of input values the function can take
The domain is all set of real numbers
<h3>How to determine the domain</h3>
The expression is given as:
![\frac{x^2 - x - 12}{x - 4}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2%20-%20x%20-%2012%7D%7Bx%20-%204%7D)
Factorize the numerator of the expression
![\frac{(x - 4)(x + 3)}{x - 4}](https://tex.z-dn.net/?f=%5Cfrac%7B%28x%20-%204%29%28x%20%2B%203%29%7D%7Bx%20-%204%7D)
Simplify: Cancel out the common terms
![x + 3](https://tex.z-dn.net/?f=x%20%2B%203)
The above expression can take any value of x.
Hence, the domain is all set of real numbers
Read more about domain at:
brainly.com/question/2264373
First, list all possibile combinations(alphabetized for convenience):
abcd
abdc
acbd
acdb
adbc
adcb
bacd
badc
bcad
bcda
bdac
bdca
cabd
cadb
cbad
cbda
cdab
cdba
dabc
dacb
dbac
dbca
dcab
dcba
Going down the list, number 17 is cdba.
The answer is 51
you plug in 7 so it will be 42 + 9 = 51