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Yuri [45]
2 years ago
13

3n + 8 = 35 solve for n

Mathematics
2 answers:
Debora [2.8K]2 years ago
7 0

Answer:

n = 9

Step-by-step explanation:

3n+8=35 –– First, subtract 8 from both sides

3n=27 –– Divide both sides by 3 to get n alone

n = 9

Check:

3(9)+8=35

27+8=35

35=35

liberstina [14]2 years ago
3 0

Answer:

Step-by-step explanation:

3n+8=35

subtract 8 on both sides

3n=27

n=9

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Answer: 270.9 miles.

Step-by-step explanation:

The formula  we use here is :

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3 years ago
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Answer:

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Step-by-step explanation:

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There are two numbers, one is 7 more than twice the other. The sum of the numbers is 43. Make the equation to find the smaller n
Mrrafil [7]

Answer:

Smaller number: 12

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Step-by-step explanation:

Hi there!

Let x equal to the smaller number.

Let y be equal to the greater number.

<u>1) Translate the information into equations</u>

"One is 7 more than twice the other"

⇒ y=2x+7

"The sum of the numbers is 43"

⇒ x+y=43

<u>2) Use substitution to solve for the smaller number</u>

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Plug the equation y=2x+7 into the above equation

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Subtract both sides by 7

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Divide both sides by 3 to isolate x

\frac{3x}{3} = \frac{36}{3} \\x=12

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<u>3) Use substitution to solve for the greater number</u>

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Plug in x as 12

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Subtract both sides by 12 to isolate y

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I hope this helps!

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Step-by-step explanation:

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