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2 years ago

-8 - x = x - 4x how does x equal to 4 and how do u do this

Mathematics

1 answer:

Over [174]2 years ago

4 0

Answer:

x=4

Step-by-step explanation:

-x=-3x+8

-x+3x=-3x+8+3x

2x=8

2x/2 = 8/2

x = 4

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Answer:

The correct option is D.

Step-by-step explanation:

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Where,

$b=\frac{n(\sum xy)-(\sum x)(\sum y)}{n(\sum x^2)-(\sum x)^2}$

$a=\frac{(\sum y)(\sum x^2)-(\sum x)(\sum xy)}{n(\sum x^2)-(\sum x)^2}$

The formula of r is

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Using above formula, we get

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