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goldenfox [79]
4 years ago
13

The difference between eight times a number and three is equal to negative nineteen. What is the number

Mathematics
2 answers:
zhuklara [117]4 years ago
5 0
8x - 3 = -19
8x = - 19 + 3
8x = -16
x = -16/8
x = -2

answer: the number is negative 2
Irina-Kira [14]4 years ago
4 0

Answer:

number will be (-2)

Step-by-step explanation:

Equation formed from the statement given in the question will be

8x - 3 = -19

8x = 3 - 19

8x = -16

x = \frac{-16}{8}

x = (-2)

Therefore, number will be (-2)

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2^2x+2 *5^x-1=8^x*5^2x
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Answer:

The solution will be "x = 2 and x = -1".

Step-by-step explanation:

The given equation is:

⇒  2^{2x+2}\times 5^{x-1}=8^x\times 5^{2x}

On solving "8^x", we get

⇒  2^{2x+2}\times 5^{x-1}=(2^3)^x\times 5^{2x}

As we know, if the base are same then their powers will be added together.

⇒  2x+2=3x ...(equation 1)

⇒  x-1=2x ...(equation 2)

From equation 1, we get

⇒  2=3x-2x

⇒  2=x \ i.e., x =2

From equation 2, we get

⇒  -1=2x-x

⇒  -1=x \ i.e., x=-1

So that the correct answer will be "x = 2" and "x = -1".

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3 years ago
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if she walks 10,000 steps at 30 inches then we have 300,000 inches...

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3 years ago
Solve for b. C=b225 b=±5C√C b=±C√5 b=±5C b=±5C‾‾√
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B=±5<span>√<span>​<span>c

Now if you ever need help a website you can use is cymath, i use it for my school and its how i found out your answer here, it has never been wrong for me, i'm just a student myself. Good Luck!
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Please give me brainiest! I’m striving for the next rank!

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Gala2k [10]

Answer:

I don't know where those answers are coming from, but I got:

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