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AnnZ [28]
3 years ago
9

How am I supposed to solve this? I know how to do the equations but I don't know why there are only 2 places to put an answer fo

r X and Y when there are 2 equations. Both equations have an X and a Y so that means there are 4 X and Y answers.

Mathematics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

x = 1

y = -4

Step-by-step explanation:

We will multiply the 2nd equation by 4 first:

4 * [-x + y = -5]

-4x + 4y = -20

Now we will add this equation with 1st equation given. Shown below:

4x + 3y = -8

-4x + 4y = -20

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

7y = -28

Now, we can solve for y easily:

7y = -28

y = -28/7

y = -4

Now, we take this value of y and put it in 1st original equation and solve for x:

4x + 3y = -8

4x + 3(-4) = -8

4x - 12 = -8

4x = -8 + 12

4x = 4

x = 4/4

x = 1

So, this is the only solution to this problem ( 1 intersection point at x = 1 and y = -4)

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Answer:

\frac{x - 10}{8}

Step-by-step explanation:

\frac{3x}{8} - \frac{x + 5}{4}

The common denominator of both fractions is 8. Therefore,, divide the denominator of each fraction, then multiply what you get by the numerator of each fraction.

Thus:

\frac{1(3x) - 2(x + 5)}{8}

\frac{3x - 2x - 10}{8}

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3 years ago
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jonny [76]
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7cos(x) + 1 = 6/cos(x)
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2 years ago
A test was given to a group of students. The grades and gender are summarized below
jasenka [17]

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<h3>★ <u>11/30</u> is the right answer. ★</h3>

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

2(x + 15)⁰ + (3x + 20)⁰=180⁰

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2 years ago
Read 2 more answers
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