4 buku 3 pensil = 12.500<br /> 2 buku 1 pensil =5.500<br /> dit: 1 buku 1 pensil <br /> Berapa harganya?

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Grade: Education Mata Pelajaran: matematika

4 buku 3 pensil = 12.500
2 buku 1 pensil =5.500
dit: 1 buku 1 pensil
Berapa harganya?

Ditanyakan oleh: USER4593

104 Dilihat 104 Jawaban

Jawaban (104)

USER2289

Jawaban Terbaik

(315)

BUKU = X, PENSIL=Y
4X+3Y = 12500 |X1| 4X+3Y = 12500
2X+Y = 5500 |X2| 4X+2Y = 11000
------------------------(-)
Y = 1500
2X+1500 = 5500
2X = 4000
X = 2000

Dijawab pada tanggal 29 Agustus 2025

USER5742

(433)

I . dimisalkan :
X=buku
Y=pensil
4x+3y=12.500 (x1)
2x+y=5.500 (x3)
________________

4x+3y=12.500
6x+3y=16.500
______________ _
-2x = -4000
= -4000/-2
ketemu x=2000

II. Dimasukkan
2x+y=5.500
2(2000)+y=5.500
4000+y=5.500
y = 5.500 - 4000
y =1.500

Dah ketemu

Dijawab pada tanggal 29 Agustus 2025

4 buku 3 pensil = 12.500 2 buku 1 pensil =5.500 dit: 1 buku 1 pensil Berapa harganya?

Pertanyaan

Jawaban (104)

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4 buku 3 pensil = 12.500
2 buku 1 pensil =5.500
dit: 1 buku 1 pensil
Berapa harganya?

Factoriser l'expression
D=(x+3)(3x-5)+(x+3)(4x-6)