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Shtirlitz [24]
3 years ago
15

Which of the following is the solution to the equation - n/2 + 14 = 0 ?

Mathematics
1 answer:
poizon [28]3 years ago
4 0
The answer is n=28;

1. Subtract 14 from both sides (-n/2 = -14)

2. Multiply by 2 on both sides to get rid of the fraction (-n = -28)

3. Divide by -1 to get n by itself (n = 28)

You could also eliminate step three by multiplying by -2 instead of just 2.

Hope this helps!
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Twenty planes are at an airport. Eight planes take off, then five planes land, then 7
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Answer:

19

Step-by-step explanation:

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12 + 5 = 17

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3 years ago
Equation 5 + 2w = y + 5. What is the value of w
belka [17]

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Step-by-step explanation:

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Read 2 more answers
Solve for x 4.5 (8 - x) + 36 = 102 - 2.5 (3x + 24)
CaHeK987 [17]

Answer:

x = -10

Step-by-step explanation:

expand

simplify 36 - 4.5x + 36 to -4.5x + 72

simplify 102 - 7.5x - 60 to -7.5x + 42

add 7.5x to both sides

simplify -4.5x + 72 + 7.5x to 3x + 72

subtract 72 from both sides

simplify 42 - 72 to -30

divide both sides by 3

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Answer: x = -10

4 0
2 years ago
12 chocolate bars for $22 or 20 chocolate bars for $33 use unit rate to determine the better buy.
jekas [21]
12c=22
6c=11
c=1 5/6
20c=33
c= 1 13/20
5/6 is about .83
13/20 is .65
12 chocolate bars for $22 is about $1.83 each
20 chocolate bars for $33 is $1.65 each

The 20 chocolate bars for $33 dollars has a better unit rate and is a better buy.
6 0
2 years ago
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