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kati45 [8]
3 years ago
15

-8x - 4y = -24 -3x + 7y =25Solve.

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0
Answer: (1,4) x = 1, y = 4
andre [41]3 years ago
5 0

Answer:

I need the right problem.

Please read the whole thing.

Step-by-step explanation:

Hi. For this problem you are going to combine like terms.

For these problems, if you need any more help, you can search up algebra calculators on google.

I tried the problem and it said that there was too many equal signs. So, I would check to see if you asked this question correctly. I would ask your teacher.

Stay safe during these times,

The guy who tired to answer your question

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I need help pls help
Sauron [17]

Answer:

I could be wrong, but I think it's D

8 0
3 years ago
Please solve this problem and show your work !! Please answer this !!
anastassius [24]

Answer:

-18k^2+72kx+54x^2

Step-by-step explanation:

Sorry i don't have the step-by-step but that's the answer

4 0
3 years ago
Please help, i have to finish this right now
Naddik [55]
1st one: linear
2nd one: linear
3rd one: nonlinear
3 0
3 years ago
Read 2 more answers
The change of rate is
irakobra [83]

ROC is often used when speaking about momentum, and it can generally be expressed as a ratio between a change in one variable relative to a corresponding change in another; graphically, the rate of change is represented by the slope of a line. The ROC is often illustrated by the Greek letter delta.

Hope this helps!

5 0
3 years ago
Simultaneous equations 5x+y=28 x+y=2
ludmilkaskok [199]

Answer:

<h2>( \frac{13}{2}  \:,  -  \frac{9}{2} )</h2>

Step-by-step explanation:

5x + y = 28

x + y = 8

Solve the equation for y by moving 'x' to R.H.S and changing its sign

5x + y = 28

y = 2 - x

Substitute the given value of y into the equation 5x + y = 28

5x + 2 - x = 28

Solve the equation for x

Collect like terms

4x + 2 = 28

Move constant to R.H.S and change its sign

4x = 28 - 2

Subtract the numbers

4x  = 26

Divide both sides of the equation by 4

\frac{4x}{4}  =  \frac{26}{4}

Calculate

x =  \frac{26}{4}

Reduce the numbers with 2

x =  \frac{13}{2}

Now, substitute the given value of x into the equation y = 2 - x

y = 2 -  \frac{13}{2}

Solve the equation for y

y =  -  \frac{9}{2}

The possible solution of the system is the ordered pair ( x , y )

<h2>(x \: y) = ( \frac{13}{2} , \:  -  \frac{9}{2} )</h2>

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

Let's check if the given ordered pair is the solution of the system of equation:

plug the value of x and y in both equation

5 \times  \frac{13}{2}  -  \frac{9}{2}  = 28

\frac{13}{2}  -  \frac{9}{2}  = 2

Simplify the equalities

28 = 28

2 = 2

Since , all of the equalities are true, the ordered pair is the solution of the system.

(x  \:, y \: ) = ( \frac{13}{2}  \: , -  \frac{9}{2})

Hope this helps....

Best regards!!

5 0
3 years ago
Read 2 more answers
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