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Len [333]
2 years ago
7

Solve for x 3x+5≡0 mod 9

Mathematics
2 answers:
Whitepunk [10]2 years ago
5 0

3x+5=0

3x=0-5

3x=-5

Divide both sides by 3

-1.6666.......

Hope it helps.

As for mod 9, I don't understand.

astra-53 [7]2 years ago
5 0

Answer:

x=-\cfrac{5}{3}

x=-1.666

Step-by-step explanation:

3x+5=0

3x+5-5=0-5

3x=-5

\cfrac{3x}{3}=\cfrac{-5}{3}

x=-\cfrac{5}{3}

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Answer:

Natural numbers are all numbers 1, 2, 3, 4… They are the numbers you usually count and they will continue on into infinity.

Whole numbers are all natural numbers including 0 e.g. 0, 1, 2, 3, 4…

Integers include all whole numbers and their negative counterpart e.g. …-4, -3, -2, -1, 0,1, 2, 3, 4,…

All integers belong to the rational numbers. A rational number is a number

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Example

The number 4 is an integer as well as a rational number. As it can be written without a decimal component it belongs to the integers. It is a rational number because it can be written as:

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A rational number written in a decimal form can either be terminating as in:

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All rational numbers belong to the real numbers.

If you look at a numeral line

picture05

You notice that all integers, as well as all rational numbers, are at a specific distance from 0. This distance between a number x and 0 is called a number's absolute value. It is shown with the symbol

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If two numbers are at the same distance from 0 as in the case of 10 and -10 they are called opposites. Opposites have the same absolute value since they are both at the same distance from 0.

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Step-by-step explanation:

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