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joja [24]
4 years ago
8

What is the answer to this hard question -5k - 19 = 5 -13k

Mathematics
2 answers:
Gwar [14]4 years ago
3 0

You are trying to solve for k (get k by itself)

-5k - 19 = 5 - 13k       Add 19 on both sides

-5k - 19 + 19 = 5 - 13k + 19

-5k = 24 - 13k          Add 13k on both sides

-5k + 13k = 24 - 13k + 13k

8k = 24       Divide 8 on both sides

k = 3

lara [203]4 years ago
3 0

Answer:

k=3

Step-by-step explanation:

you move -13k to the right by adding it to the -5k to make 8k

next you move the "-19" by adding it to the 5 in the right side

now you have 8k=24

you divide the 24 by the eight and get k=3

Hope this helped! =3

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muminat

Answer:

1. 12x^2-13.4x-11

- Degree: 2

- Number of terms: 3

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 - Degree: 3

- Number of terms: 2

3. 9x^4-9

- Degree: 4

- Number of terms: 2

Step-by-step explanation:

For this exercise you need to remember the multiplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

1. Given:

(4x + 2.2)(3x - 5)

Apply the Distributive property:

=12x^2+6.6x-20x-11

Add the like terms:

=12x^2-13.4x-11

You can idenfity that:

- Degree: 2

- Number of terms: 3

2. Given:

(-304 +503 - 12) + (7x^3 - 25 + 6)

Add the like terms:

=187 + 7x^3 - 25 + 6=7x^3+168

You can idenfity that:

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3. Given:

(3x^2 - 3)(3x^2 + 3)

Apply Distributive property:

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Add the like terms:

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3 years ago
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Answer:

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4 years ago
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IrinaK [193]

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6 0
3 years ago
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Answer:

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Step-by-step explanation:

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This answer does not need to be rounded

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