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Anna35 [415]
3 years ago
13

9. 8x3y2 – 7x2y + 8x + 4- 6x3y2 + 2x²y + 4x²y – 3x + 5

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
7 0

Answer:

Step-by-step explanationjvuvivuvhchchcucucicucucivucucucuvhvuvuvuvuvuvuvhvuugh high-fiving:

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-12x - 12y = 4 3x + 3y = 0
Svetradugi [14.3K]

Answer:

no Solution

Step-by-step explanation:

-12x-12y=4\\ 3x+3y=0

12x-12y=4

add 12y to both sides

12x-12y+12y=4+12y

divid both sides by -12

\frac{-12x}{-12}=\frac{4}{-12}+\frac{12y}{-12}

simplfy

x=-\frac{1+3y}{3}

\mathrm{Substitute\:}x=-\frac{1+3y}{3}

\begin{bmatrix}3\left(-\frac{1+3y}{3}\right)+3y=0\end{bmatrix}

\begin{bmatrix}-1=0\end{bmatrix}

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3 years ago
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Step-by-step explanation:

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FromTheMoon [43]

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3 years ago
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nadezda [96]

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measure a and measure b are vertical angles with measure a = x and measure b = 4x - 30. what is measure a?
Zolol [24]

Answer:

∠a = 10°

Step-by-step explanation:

The measure of ∠a = x

The measure of ∠b = 4x-30

It is also mentioned that the measure a and measure b are vertical angles. We need to find the value of a.

For vertically opposite angles,

∠a = ∠b

x = 4x-30

or

4x-30=x

Taking like terms together,

4x-x= 30

3x = 30

x = 10

So, the meausre of ∠a is equal to 10°.

3 0
3 years ago
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