10 - 2x = -30
-2x = -40
2x = 40
x = 20
Answer: 
Step-by-step explanation:
Move all terms to one side
Simplify
Split the second term
Factor out common terms in the first two terms, then in the last two terms.
Factor out the common term

Answer:
see below
Step-by-step explanation:
The graph extends to the left more or less horizontally, approaching the line y=3. The only choice that expresses that is the third one.
Given:
The values of a linear function are
and
.
To find:
The linear function.
Solution:
If a linear function passes through two points, then the equation of the linear function is:

The values of a linear function are
and
. It means the function passes through the points (-9,8) and (0,1). So, the equation of the linear function is:




Adding 8 on both sides, we get


Putting
, we get

Therefore, the required linear function is
.