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Svetradugi [14.3K]
2 years ago
10

when 8 is subtracted from a certain number and the result is multiplied by 3 the final answer is 21. What is the original number

Mathematics
2 answers:
Bingel [31]2 years ago
6 0

Answer: The original number is 15.

Step-by-step explanation:

LuckyWell [14K]2 years ago
6 0

Answer:

15

Step-by-step explanation:

(x-8)*3=21

x-8=21/3

x-8=7

x=7+8

x=15

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Step-by-step explanation:

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Answer:

−1/3y+−4/3

Step-by-step explanation:

We need to solve for x.

How? Easy! :D

Step one: Flip the equation. (In class we call it the 'flip-flop'.) When you do this, you should have your equation look like this:

−3x−4=y

Step two: Add 4 to both sides of the equation. When you do this step, your problem should look like this:

−3x−4+4=y+4

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Step three: Divide both sides by -3.

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Step four: Wrap-up. What the answer is.

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Final step: OUR ANSWER!

x = -1/3 + -4/3

Hope this helped! :D

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"Kendra loves to play sports, but she also enjoys watching them." Is it simple, compound, or complex sentence?
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7 0
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Please help me number 1
xenn [34]

Answer:

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Step-by-step explanation:

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