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Sliva [168]
3 years ago
15

The sum of three numbers is 69. The second number is 6 less than the first. The third number is 3 times the first. What are the

numbers?
Mathematics
1 answer:
almond37 [142]3 years ago
7 0

Answer and Step-by-step explanation:

To solve, we would set the first number to x, and make an equation.

<u>Solve for x.</u>

x + (x - 6) + 3x = 69.

<u>Add and combine like terms.</u>

2x + 3x - 6 = 69

5x - 6 = 69

<u>Add 6 to each side of the equation.</u>

5x = 75

Divide by 5 to both sides.

x = 15

<u>The first number is 15.</u>

<u>The second number is (x - 6) = (15 - 6) = 9.</u>

<u>The third number is 3x = 3(15) = 45.</u>

<u />

<u />

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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\boxed{50}

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23 + 8m + 4n - 5m - 27​
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Answer:

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Step-by-step explanation:

In this question, you are combining like terms, meaning doing equations to numbers that fit with only each other.

<u>So we should start on the number without variables:</u>

23 and 27

<u>Match them up together and you should find your first equation:</u>

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Now we should combine the numbers with the variable of m:

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<u></u>

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<u></u>

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