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Alex17521 [72]
3 years ago
7

20 points and brainlyest to who answers this first in a well format!

Mathematics
1 answer:
djverab [1.8K]3 years ago
5 0

Answer:

in the forth line of the equation it should be this

-6x+10=4x+20

-6x-4x=20-10

-10/-10x=10/-10

x=-1

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Answer:

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Step-by-step explanation:

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A geometric series is the collection of an unlimited number of terms with a fixed ratio between them. The sum of the first seven terms of the series is 249.

<h3>What is geometrical series?</h3>

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them.

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Learn more about Geometrical Series:

brainly.com/question/4617980

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