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Charra [1.4K]
3 years ago
10

2x+4y=-12 and -4x-2y=-12 what is the solution

Mathematics
1 answer:
DochEvi [55]3 years ago
4 0

Answer:

The answer is that x = 6 and y = -6

Step-by-step explanation:

In order to find these values, we can use elimination. To do so, we multiply the first equation by 2 and then add the equations together.

4x + 8y = -24

-4x - 2y = -12

------------------

6y = -36

y = -6

Now that we have this value, we can plug the value into one of the originals and find x.

2x + 4y = -12

2x + 4(-6) = -12

2x - 24 = -12

2x = 12

x = 6

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dusya [7]

Step-by-step explanation:

x² - 2 = 2^(2/3) + 2^(-2/3)

x² = 2^(2/3) + 2 + 2^(-2/3)

x² = (2^(1/3))² + 2 × 2^(1/3) × 2^(-1/3) +

(2^(-1/3))² (It is in the form of a²+2ab+b²)

x² = (2^(1/3) + 2^(-1/3))²

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6 0
3 years ago
The sum of two numbers is 40 - 13. what are the integers.
Anni [7]
So. let's say the numbers are "a" and "b"

whatever they're, we know a + b = 56

let's say the larger one is "b", so 3 times the smaller is 3*a or 3a
now, 12 less than that, is 3a - 12

and the larger is that, so b = 3a - 12

so   \bf \begin{cases}
a+b=56\\
\boxed{b}=3a-12\\
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a+\boxed{3a-12}=56
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solve for "a", to see what the smaller one is

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6 0
4 years ago
この問題を最も簡単に解決する. 不適切な回答はありません.
Dafna1 [17]

japones ^^

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4 0
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geniusboy [140]

Answer:

x = -4

Step-by-step explanation:

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10x - 10 -3x + 4 = -34

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<u>     +6    + 6</u>

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3 years ago
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jasenka [17]

Answer:

5

Step-by-step explanation:

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7 0
3 years ago
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