Question

Please help I need to finish this today or I'm grounded and I will not graduate! :()

Answer 1

Standard form of a linear equation is

Ax + By = C

Answer 2

You have

\(x + \dfrac{4y}{7} + 2 = 0\)

Start by doing this:
1. Subtract 2 from both sides
2. Multiply both sides by 7

Answer 3

\[x+4y=14\]

Answer 4

\[7x+4y=14\]

Answer 5

?

Answer 6

@Hero which one would it be?

Answer 7

@suyogsomavanshi

Answer 8

General form of linear equation is Ax + by = c
We are having x +( 4y /7) + 2 = 0
So we have to first get rid of 2 from left hand side can you try for it ?

Answer 9

\[x+(4/7)=-2\]

Answer 10

Correct but there is y with (4/7) right ???
So we get x + 4y / 7 = -2
Now we need to get rid of 7 from bottom of 4y Any idea ??

Answer 11

If you multiplied both sides by 7 you should have gotten

7x + 4y = -14

Answer 12

ok so time both sides by 7

Answer 13

correct getting this ????

Answer 14

You had it, but you forgot the negative in front of the 14

Answer 15

so 7x+4y=-14 ok I didn't have the -2 before thanks and what about the first attachment

Answer 16

So this would be in our desired form like Ax+By= c
7x+4y=-14 Is it clear to you ?

Answer 17

yes it is thanks!

Answer 18

Any doubt ???

Answer 19

I don't even know where to begin on the question I just uploaded?

Answer 20

@acxbox22 @mathmale

Answer 21

@suyogsomavanshi

Answer 22

\[\left[\begin{matrix}4 & 7 \\ 1 & 2\end{matrix}\right]*\left(\begin{matrix}24 \\ 7\end{matrix}\right)\]
i also need help with this

Answer 23

@Erob, post it as a separate question. Close this question and post a new one.

Answer 24

First we would try to fix first one

Answer 25

We have to consider two odd numbers as 2n + 1 and 2n + 3 getting this ?

Answer 26

Hello ... ???

Answer 27

I'll post the third one seperae and k

Answer 28

2n+1 and 2n+3 got it

Answer 29

@suyogsomavanshi

Answer 30

Now sum of them is = 2n + 1 + 2n + 3 = ---- ?

Answer 31

4n+4

Answer 32

perfect
Now it says there sum is increased by 15 so how you could write it ??

Answer 33

(4n+4)+15

Answer 34

or just 4n+19

Answer 35

\[\begin{matrix} \times & \left[ \begin{matrix} 24 \\ 7 \end{matrix} \right] \\ \begin{bmatrix} 4 & 7 \\ 1 & 2 \end{bmatrix} & \left[ \begin{matrix} \square \\ \square \end{matrix} \right] \end{matrix}\]

Answer 36

(4)(24) + 7(7)
(1)(24) + 2(7)

Answer 37

thanks!

Answer 38

That's how you set it up if you want to figure out the size of the solution matrix.

Answer 39

It also helps if you want to figure out whether or not the matrices can even be multiplied

Answer 40

We have to wind up first question
you are right for 4n + 19
Now it says it is equal to 47 ......
So we get 4n + 19 = 47 getting this ???

Answer 41

yes so 4n=28?

Answer 42

and n=7?

Answer 43

Perfect

Answer 44

Thanks!

Answer 45

So as we assume our two numbers 2n+1 and 2n+3
Now just plug n=7 into this and find out numbers can you try ?

Answer 46

15 and 17?

Answer 47

Perfect

Answer 48

Is it clear to you ?

Answer 49

Yes it is thanks!

Answer 50

You are most welcome :)