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3x+2y-5z= -32
y=?​

Matematika x/2=y/3=z/4
3x+2y-5z= -32
y=?​

anselmosciskiulv – March 08, 2023
x/2=y/3=z/4
3x+2y-5z= -32
y=?​

Jawaban:

12

Penjelasan dengan langkah-langkah:

Misalkan

  • X = 2a
  • Y = 3a
  • Z = 4a

Sehingga :

X/2 = Y/3 = Z/4 = a

Substitusi kan nilai dari X,Y,Z yang sudah dimisalkan ke persamaan kedua.

Sehingga :

3x + 2y - 5z = -32

3(2a) + 2(3a) - 5(4a) = -32

6a + 6a - 20a = -32

-8a = -32

a = -32/-8 = 4.

Maka Didapatkan bahwa

Y = 3a = 3(4) = 12

[answer.2.content]
Post under : #matematika

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