Answer:
Looking at the question and goin step by step
we get to know that equation formed wud be ->
product of nine and a number - 9*x = 9x
added to 6 => 9x+6
gives us 24
so
9x + 6 = 24
now 9x = 18 and x = 18/9 = 2
and now keeping x value = 9 *(2)+6 we get 18+6 = 24
so lhs = rhs = 24
9x+6=24 option a
Y2-y1/x2-x1. so -7-8/-1-(-1)= -15/1
Answer:
X = -3. non-extraneous
Step-by-step explanation:
The given equation is 
We cross multiply to get:

Expand and multiply.


We factor to obtain:


Checking for extraneous solutions
Substitute x=-3 


.....Non-extraneous
Checking for x=6


....Non-extraneous