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Nady [450]
3 years ago
13

5n + 34 = -2(1-7n) n= ill mark brainliest and 20 points

Mathematics
2 answers:
mash [69]3 years ago
6 0

Answer:

n=4

Step-by-step explanation:

Expand  −2(1−7n):    −2+14n

5n+34=−2+14n

Subtract 34 from both sides

5n+34−34=−2+14n−34

Simplify

5n=14n−36

Subtract 14n from both sides

5n−14n=14n−36−14n

Simplify

−9n=−36

Divide both sides by −9

−9n

−9 =

−36

−9

Simplify

n=4​

Arturiano [62]3 years ago
5 0
The answer is n = 4

5n + 34 = -2 ( 1 - 7n )

You first need to the the parentheses which is -2(1) = -2 and -2(-7) = 14 it’s positive 14 because a negative times a negative it’s positive. So it would be:

5n + 34 = -2 + 14n

You want to have variables on one side so you can take away 14 from the 5 or 5 from the 14

5n + 34 = -2 + 14n
-14n. -14n

Which would equal:

-9n + 34 = -2

Then you need to subtract 34 from both sides.

-9n + 34 = -2
-34. -34

When done your answer should be:

-9n = -36

Then you divide both sides by -9 which would give you n = 4




There is this app called “Photomath” which helps with this type of problems.

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KiRa [710]

Answer:

it's negative 13, or y = -13

Step-by-step explanation:

positive times negative gets you negative and then when you subtract 3 it becomes -13

hope this helped have a good day bye byeeeee

3 0
3 years ago
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(30pts)
AURORKA [14]

y = a(1-r)^×

source: https://mathbitsnotebook.com/Algebra2/Exponential/EXGrowthDecay.html

y = exponential decay

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Error:

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x = w per the above information

Sarah did not account for either of these points when creating her equation.

Correct solution:

y = 78000 (1-.03)^w

7 0
3 years ago
Express this number in scientific notation?<br> 96,470.000
muminat
96,470 in scientific notation is equal to 9.647 * 10^{4}.
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4 years ago
mr richey bought 20 organizer books and 20 staplers for students. each stapler costs 3$. mr richey spent in total of 200$ for th
pantera1 [17]

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4 0
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sertanlavr [38]
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