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Pavel [41]
3 years ago
14

Given the system of equations presented here:

Mathematics
2 answers:
statuscvo [17]3 years ago
6 0

Answer:

multiply the first equation by - 7 to get - 28x - 7y = - 28

Step-by-step explanation:

This then results on  adding the 2 equations as

- 24x = 0 ⇒ x = 0 and y = 4

solution to system is (0, 4 )


s344n2d4d5 [400]3 years ago
3 0

Answer: multiply the first equatiom by -7 to get -28x -7y =-28

Step-by-step explanation:

4x + y = 4 ------------(1)

2x + 7y = 28 -----------(2)

multiply equation (1) by -7

-28x - 7y = -28 ---------(3)

add equation (2) and (3)

-24x = 0

Divide bothside by 24

x =0

substitute x= 0 in equation(1)

4x +y = 4

4(0) + y = 4

y = 4

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-5.73q = 97.41 q= please help me???
jek_recluse [69]

First Divide both sides by -5.73

-5.73q/-5.73=97.41/-5.73

Answer: q=-17

7 0
4 years ago
Please help me with this problem immediately
kari74 [83]

Answer:

Step-by-step explanation:

I don't know

8 0
3 years ago
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Simplify the following: 7-3[(n^3+8n)/(-n)+9n^2]
Pachacha [2.7K]
If you would like to simplify <span>7 - 3[(n^3 + 8n) / (-n) + 9n^2], you can do this using the following steps:

</span>7 - 3[(n^3 + 8n) / (-n) + 9n^2] = 7 - 3[(-n^2 - 8) + 9n^2] = 7 - 3[-n^2 - 8 + 9n^2] = 7 - 3[ - 8 + 8n^2] = 7 - 3[8<span>n^2 - 8] = 7 - 24n^2 + 24 = - 24n^2 + 31
</span>
The correct result would be <span>- 24n^2 + 31.</span>
7 0
3 years ago
How do u do this?? Number 28
Ede4ka [16]
U just write it in word form

4 0
3 years ago
Read 2 more answers
Pleease please please help me! asap &lt;3 30 points! pls make sure its right UwU thx im timed :(
Andrej [43]

Answer:

f(x) = -x -1

Step-by-step explanation:

f(x) = mx + b

find 2 points on the line:

A( -1 , 0)

B( 0 , -1)

Put them in the equation and fine m & b:

0=m(-1)+b

-1=m(0)+b

so b= -1

and m= -1

so f(x) = -x-1

8 0
3 years ago
Read 2 more answers
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