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IrinaVladis [17]
3 years ago
11

Three times the sum of a number n plus 1 equals two times the sum of the number plus 4. Which equation can be used to find n?

Mathematics
1 answer:
KengaRu [80]3 years ago
6 0

Answer:

B.

Step-by-step explanation:

3(n+1)=2(n+4)

3 × n + 3 × 1 = 2 × n + 2 × 4

3n + 3 = 2n + 8

3n - 2n = 8 - 3 we regroup by categories (unknown and number)

n = 5

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Hunter-Best [27]

Answer:

x = -5

Step-by-step explanation:

Simplifying

6x + -3(x + -8) = 9

Reorder the terms:

6x + -3(-8 + x) = 9

6x + (-8 * -3 + x * -3) = 9

6x + (24 + -3x) = 9

Reorder the terms:

24 + 6x + -3x = 9

Combine like terms: 6x + -3x = 3x

24 + 3x = 9

Solving

24 + 3x = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-24' to each side of the equation.

24 + -24 + 3x = 9 + -24

Combine like terms: 24 + -24 = 0

0 + 3x = 9 + -24

3x = 9 + -24

Combine like terms: 9 + -24 = -15

3x = -15

Divide each side by '3'.

x = -5

Hope this Helps

I hope this is correct


3 0
4 years ago
Read 2 more answers
Help T-T plz (14 points)
olganol [36]

Answer:

The answer is 10.5 or 10 1/2

Step-by-step explanation:

1) A=LxW

2) the height is given but you do not have the width So Divide.

3) first turn the fraction into decimals

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hopes this helps.

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A spinner has 5 sector's of equal size. The sectors are labeled 1,2,3,4, and 5. the spinner is spun twice.x is the number of tim
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Answer:

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So for every number, you have a probability of 0.2 of it appearing.

Because you have three odd numbers, the probability to land on an odd number on each spin is 0.6. You can also say that the probability to not have an odd number is 0.4.

So what is the probability to have 0 odd number in two spins?

What is the probability to have 1 odd number in two spins? You can have one odd number on the first or one odd on the second spin, that is why we add the probabilities.

What is the probability to have 2 odd numbers in two spins?

To verify if we did a good job, we add all the probabilities. We should get 1.

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So to slide your bars, you slide them up to the number I gave you for each case.

Hope this helps!

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What are trapezoids?
postnew [5]

Answer:

Is a quadrilateral with one pair of opposite sides parallel

Step-by-step explanation:

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nikklg [1K]

Let the number be x

Explanation:

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