It's Fine! A Mother's View from the ICU

It's Fine! A Mother's View from the ICU

Matematika Qz 35 / ∞
tentukkan solusi dari
[tex]2x + 3 = 5[/tex]
[tex]3a - 6 = 9[/tex]
[tex]3x + 4y = 11[/tex]

Qz 35 / ∞
tentukkan solusi dari
[tex]2x + 3 = 5[/tex]
[tex]3a - 6 = 9[/tex]
[tex]3x + 4y = 11[/tex]

Jawaban:

[tex]2x + 3 = 5[/tex]

[tex]2x = 5 - 3[/tex]

[tex]2x = 2[/tex]

[tex]x = \frac{2}{2} [/tex]

[tex]x = 1[/tex]

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[tex]3a - 6 = 9[/tex]

[tex]3a = 6 + 9[/tex]

[tex]3a = 15[/tex]

[tex]a = \frac{15}{3} [/tex]

[tex]a = 5[/tex]

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[tex]3x + 4y = 11[/tex]

[tex]3(5) + 4( - 1) = 11[/tex]

[tex] 15 + - 4 = 11[/tex]

Jawab:
x = 1
a = 5
Untuk nomor ketiga
y = 2
(misal x = 1 di soal pertama)
Jika x ≠ 1, x = ⅓(11-4y), y = ¼(11-3x)

Penjelasan:
2x + 3 = 5
2x = 5-3
2x = 2
x = 2/2
x = 1

3a-6 = 9
3a = 9+6
3a = 15
a = 15/3
a = 5

3x+4y = 11
(semua beda suku,
tidak bisa diselesaikan,
kecuali misal x, yang barusan
x = 1)
3(1)+4y = 11
3 + 4y = 11
4y = 11-3
4y = 8
y = 8/4
y = 2

( x c v i )

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