
Soal Matematika Aljabar
Authored by YUDHA FAJAR PRASETYA
Mathematics
7th Grade
Used 3+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apa hasil dari 3x + 5x?
8x
5x
10x
3x + 2x
Answer explanation
Untuk menjumlahkan 3x dan 5x, kita cukup menambahkan koefisiennya: 3 + 5 = 8. Jadi, hasilnya adalah 8x, yang merupakan pilihan yang benar.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Jika x = 2, berapa nilai dari 4x - 3?
5
1
10
7
Answer explanation
Untuk menghitung 4x - 3, substitusi x dengan 2: 4(2) - 3 = 8 - 3 = 5. Jadi, nilai dari 4x - 3 adalah 5.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Selesaikan persamaan: 2a + 3 = 11
6
3
5
4
Answer explanation
Untuk menyelesaikan persamaan 2a + 3 = 11, kurangi 3 dari kedua sisi: 2a = 8. Kemudian bagi kedua sisi dengan 2: a = 4. Jadi, jawaban yang benar adalah 4.
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Jika y = 3, hitunglah 5y + 2.
15
10
17
20
Answer explanation
Untuk menghitung 5y + 2, substitusi y = 3: 5(3) + 2 = 15 + 2 = 17. Jadi, jawaban yang benar adalah 17.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apa hasil dari (x + 2)(x - 3)?
x^2 - 5
x^2 - x - 6
x^2 + x + 6
x^2 + 5x - 6
Answer explanation
Hasil dari (x + 2)(x - 3) dapat ditemukan dengan mengalikan kedua suku: x^2 - 3x + 2x - 6, yang disederhanakan menjadi x^2 - x - 6. Jadi, jawaban yang benar adalah x^2 - x - 6.
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Selesaikan: 7x - 4 = 10
1
3
2
5
Answer explanation
Untuk menyelesaikan persamaan 7x - 4 = 10, tambahkan 4 ke kedua sisi: 7x = 14. Kemudian bagi kedua sisi dengan 7: x = 2. Jadi, jawaban yang benar adalah 2.
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Jika z = 5, berapa nilai dari 2z^2 - 3?
40
55
30
47
Answer explanation
Untuk menghitung 2z^2 - 3, substitusi z = 5. Jadi, 2(5^2) - 3 = 2(25) - 3 = 50 - 3 = 47. Nilai yang benar adalah 47.
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