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Over [174]
3 years ago
9

I think of a number N. I add 5 to N and then multiply the answer by 3. The result is 84. What is the number N that l first thoug

ht of?
Mathematics
2 answers:
DanielleElmas [232]3 years ago
7 0
84/3 = 28 
28-5 =23
Resposta = 23
Grace [21]3 years ago
4 0
The answer is 26.33 repeating 
How you get that answer is
First do N times 3 
so the you have 3n + 5 = 84
minus 5 from both sides and then you get 3n = 79
divid both sides by 3 and then you get n = 26.33 reapting
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Answer:

3

Explanation:

Apply Multiplicative Distribution Law:

{x + y =9

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Reduce the greatest common factor on both sides of the equation.

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Subtract the two equations: x + y - (x +3y) = 9 - 15

Remove paranthesis: x + y - x - 3y = 9 - 15

Cancel the unknown variables: y - 3y = 9 - 15

Combine like terms: -2y=9 - 15

Calculate the sum or difference: -2y = -6

Reduce the greatest common factor on both sides of the equation: y =3

Substitute one unknown quantity into the elimination: x + 3 = 9

Rearrange unknown terms to the left side of the equation: x = 9 - 3

Calculate the sum or difference: x = 6

Write the solution set of equations: {x = 6

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Substitute: 6 - 3

Calculate the sum or difference: 3

Answer: 3

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Step-by-step explanation:

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