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Debora [2.8K]
3 years ago
10

What is the value of the expression when n=3 -2n(5+n-8-3n)

Mathematics
2 answers:
aliina [53]3 years ago
7 0

Answer: 54.

Step-by-step explanation: To solve this problem, we only need to substitute n=3 in the given equation and calculate, the procedure is shown as follows:

-2n(5+n-8-3n)

with n=3:

-2(3)(5+3-8-3(3))=

-6(-9)=

54

So, when n=3 the expression equals 54.

igor_vitrenko [27]3 years ago
4 0
-2(3)(5+3-8-3(3))
=-6(5+3-8-9)
=-30-18+48+54
=54
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hram777 [196]

Answer:

x = -8.5

Step-by-step explanation:

Let's rearrange the question to find x :)

-8x + 6x + 10 - 8 = 19

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Alex73 [517]

Hi there!

\large\boxed{b = \frac{a}{ac - 1}}

We can begin by making each fraction have a common denominator:

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