Answer:
She subtracted 7x instead of dividing it. Personally, i wouldn't have done that. I would subtract the 14 first, then divide.
Answer:
X = 2, -8
Step-by-step explanation:
If the series is made up of numbers in an arithmetic progression, you have

where

is the first term and

is the common difference between terms.
Since the last term in the series is

, you have

Solve the system

and you'll find that the first term is

(with

).
Answer:

Step-by-step explanation:
This is for the first question.
Slope-intercept is:

m - slope
b - y-intercept
We are given the slope of
and a y-intercept of 2.
Plug in the values:

Hope this helps.
Y= -9x
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8
hope this helps
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