Kenzo K

06 November 2023 22:14

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Kenzo K

06 November 2023 22:14

Pertanyaan

Tentukan Nilai dari X, Y, Z! Soal ada digambar!!

Tentukan Nilai dari X, Y, Z!

Soal ada digambar!!

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Reyhan Y

06 November 2023 22:42

Jawaban terverifikasi

<p>x-y+z = 6.............(1)</p><p>3x-2y+3z = 17............(2)</p><p>2x-z = 1................(3)</p><p>z = 2x - 1</p><p>&nbsp;</p><p>Subs z = 2x-1</p><p>&nbsp;</p><p>x-y+z = 6</p><p>x-y+(2x-1) = 6</p><p>3x-y-1 = 6</p><p>3x-y = 6+1</p><p>3x-y = 7............(4)</p><p>&nbsp;</p><p>Subs &nbsp;z=2x -1</p><p>3x-2y+3z = 17............(2)</p><p>3x-2y+3(2x-1) = 17</p><p>3x-2y+6x-3 = 17</p><p>9x-2y = 17+3</p><p>9x-2y = 20........(5)</p><p>&nbsp;</p><p>Gunakan SPLDV pers (4)&amp;(5)</p><p>&nbsp; 3x-y = 7. &nbsp; |2×|. 6x-2y = 14</p><p>9x-2y = 20. |1×|. 9x-2y = 20. _</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;----------------</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;-3x = -6</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; x = -6/-3 = 2</p><p>&nbsp;</p><p>Subs x = 2</p><p>3x - y = 7</p><p>3(2) - y = 7</p><p>6 - y = 7</p><p>y = 6-7 = -1</p><p>&nbsp;</p><p>Subs x = 2 dan y = -1</p><p>x-y+z = 6</p><p>2-(-1)+z = 6</p><p>3+z = 6</p><p>z = 6-3 = 3</p><p>&nbsp;</p><p>subs x = 2,y = -1,z = 3</p><p>=(X.Y.Z) / (X+Y+Z)</p><p>=(2.(-1).3) / (2+(-1)+3)</p><p>=(-6) / 4</p><p>= - <sup>6</sup>/<sub>4</sub></p><p>= - <sup>3</sup>/<sub>2</sub></p><p>&nbsp;</p>

x-y+z = 6.............(1)

3x-2y+3z = 17............(2)

2x-z = 1................(3)

z = 2x - 1

 

Subs z = 2x-1

 

x-y+z = 6

x-y+(2x-1) = 6

3x-y-1 = 6

3x-y = 6+1

3x-y = 7............(4)

 

Subs  z=2x -1

3x-2y+3z = 17............(2)

3x-2y+3(2x-1) = 17

3x-2y+6x-3 = 17

9x-2y = 17+3

9x-2y = 20........(5)

 

Gunakan SPLDV pers (4)&(5)

  3x-y = 7.   |2×|. 6x-2y = 14

9x-2y = 20. |1×|. 9x-2y = 20. _

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

                               -3x = -6

                                  x = -6/-3 = 2

 

Subs x = 2

3x - y = 7

3(2) - y = 7

6 - y = 7

y = 6-7 = -1

 

Subs x = 2 dan y = -1

x-y+z = 6

2-(-1)+z = 6

3+z = 6

z = 6-3 = 3

 

subs x = 2,y = -1,z = 3

=(X.Y.Z) / (X+Y+Z)

=(2.(-1).3) / (2+(-1)+3)

=(-6) / 4

= - 6/4

= - 3/2

 


Kenzo K

06 November 2023 22:46

itu yg dikalikan pers 4, 5 itu gmn?

— Tampilkan 3 balasan lainnya

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Hilbram M

08 November 2023 05:30

<h1>x38 &nbsp; &nbsp;</h1>

x38    


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